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marktrayerData Model Work Group Chair
marktrayer
authored and
Data Model Work Group Chair
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Approved: BLE-Bridging-Derived-Models-2019-11-18
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‎org.bluetooth.profile.BLP_v0.3_r1.1.json‎

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{
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"id": "http://openinterconnect.org/bleocfmapping/schemas/org.bluetooth.profile.BLP.json#",
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"$schema": "http://json-schema.org/draft-04/schema#",
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"description" : "Copyright (c) 2018 Open Connectivity Foundation, Inc. All rights reserved.",
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"title": "Blood Pressure",
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"definitions": {
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"byte": {
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"type": "integer",
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"minimum": 0,
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"maximum": 255
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},
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"byteArray": {
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"type": "array",
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"items": { "$ref": "#/definitions/byte" },
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"minItems": 1,
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"uniqueItems": false
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},
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"org.bluetooth.characteristic.blood_pressure_measurement" : {
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"type" : "object",
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"properties": {
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"blood_pressure_measurement[length - 3 : length - 1]": {
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"$ref": "#/definitions/byteArray",
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"description": "Blood Pressure Measurement Compound Value - Systolic",
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"x-ocf-conversion": {
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"x-ocf-alias": "oic.r.blood.pressure",
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"x-to-ocf": [
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"def ieee11073_Sfloat_2_Float(sfloat_value):",
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"# reserved value for Infinity or NaN (Not a Number)",
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"reserved_float_values = {",
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"0x07FE:math.inf, # +INFINITY",
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"0x07FF:math.nan, # NaN (Not a Number)",
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"0x0800:math.nan, # NRes (Not at this Resolution)",
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"0x0801:math.nan, # Reserved for future",
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"0x0802:-math.inf # -INFINITY",
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"}",
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"mantissa = sfloat_value & 0x0FFF",
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"exponent = sfloat_value >> 12",
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"if (exponent >= 0x0008):",
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"exponent = -((0x000F + 1) - exponent)",
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"output = 0",
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"if (mantissa >= 0x07FE and mantissa <= 0x0802):",
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"output = reserved_float_values[mantissa]",
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"else:",
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"if (mantissa >= 0x0800):",
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"mantissa = -((0x0FFF + 1) - mantissa)",
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"magnitude = pow(10.0, exponent)",
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"output = (mantissa * magnitude)",
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"return output",
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"length = len(blood_pressure_measurement)",
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"flags = blood_pressure_measurement[length - 1]",
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"oic.r.blood.pressure.systolic = ieee11073_Sfloat_2_Float(blood_pressure_measurement[length - 3 : length - 1])",
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"oic.r.blood.pressure.units = \"mmHg\" if (flags & 0x01) else \"kPa\""
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],
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"x-from-ocf": [
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"N/A"
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]
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}
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},
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"blood_pressure_measurement[length - 5 : length - 3]": {
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"$ref": "#/definitions/byteArray",
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"description": "Blood Pressure Measurement Compound Value - Diastolic",
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"x-ocf-conversion": {
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"x-ocf-alias": "oic.r.blood.pressure",
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"x-to-ocf": [
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"def ieee11073_Sfloat_2_Float(sfloat_value):",
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"# reserved value for Infinity or NaN (Not a Number)",
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"reserved_float_values = {",
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"0x07FE:math.inf, # +INFINITY",
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"0x07FF:math.nan, # NaN (Not a Number)",
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"0x0800:math.nan, # NRes (Not at this Resolution)",
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"0x0801:math.nan, # Reserved for future",
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"0x0802:-math.inf # -INFINITY",
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"}",
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"mantissa = sfloat_value & 0x0FFF",
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"exponent = sfloat_value >> 12",
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"if (exponent >= 0x0008):",
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"exponent = -((0x000F + 1) - exponent)",
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"output = 0",
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"if (mantissa >= 0x07FE and mantissa <= 0x0802):",
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"output = reserved_float_values[mantissa]",
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"else:",
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"if (mantissa >= 0x0800):",
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"mantissa = -((0x0FFF + 1) - mantissa)",
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"magnitude = pow(10.0, exponent)",
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"output = (mantissa * magnitude)",
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"return output",
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"length = len(blood_pressure_measurement)",
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"oic.r.blood.pressure.diastolic = ieee11073_Sfloat_2_Float(blood_pressure_measurement[length - 5 : length - 3])"
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],
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"x-from-ocf": [
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"N/A"
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]
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}
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},
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"blood_pressure_measurement[length - 7 : length - 5]": {
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"$ref": "#/definitions/byteArray",
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"description": "Blood Pressure Measurement Compound Value - Mean Arterial Pressure",
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"x-ocf-conversion": {
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"x-ocf-alias": "oic.r.blood.pressure",
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"x-to-ocf": [
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"def ieee11073_Sfloat_2_Float(sfloat_value):",
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"# reserved value for Infinity or NaN (Not a Number)",
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"reserved_float_values = {",
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"0x07FE:math.inf, # +INFINITY",
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"0x07FF:math.nan, # NaN (Not a Number)",
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"0x0800:math.nan, # NRes (Not at this Resolution)",
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"0x0801:math.nan, # Reserved for future",
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"0x0802:-math.inf # -INFINITY",
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"}",
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"mantissa = sfloat_value & 0x0FFF",
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"exponent = sfloat_value >> 12",
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"if (exponent >= 0x0008):",
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"exponent = -((0x000F + 1) - exponent)",
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"output = 0",
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"if (mantissa >= 0x07FE and mantissa <= 0x0802):",
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"output = reserved_float_values[mantissa]",
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"else:",
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"if (mantissa >= 0x0800):",
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"mantissa = -((0x0FFF + 1) - mantissa)",
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"magnitude = pow(10.0, exponent)",
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"output = (mantissa * magnitude)",
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"return output",
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"length = len(blood_pressure_measurement)",
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"oic.r.blood.pressure.map = ieee11073_Sfloat_2_Float(blood_pressure_measurement[length - 7 : length - 5])"
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],
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"x-from-ocf": [
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"N/A"
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]
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}
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},
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"blood_pressure_measurement[length - 7 - timestamp_len - 2 : length - 7 - timestamp_len]": {
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"$ref": "#/definitions/byteArray",
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"description": "Pulse Rate",
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"x-ocf-conversion": {
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"x-ocf-alias": "oic.r.pulserate",
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"x-to-ocf": [
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"def ieee11073_Sfloat_2_Float(sfloat_value):",
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"# reserved value for Infinity or NaN (Not a Number)",
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"reserved_float_values = {",
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"0x07FE:math.inf, # +INFINITY",
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"0x07FF:math.nan, # NaN (Not a Number)",
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"0x0800:math.nan, # NRes (Not at this Resolution)",
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"0x0801:math.nan, # Reserved for future",
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"0x0802:-math.inf # -INFINITY",
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"}",
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"mantissa = sfloat_value & 0x0FFF",
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"exponent = sfloat_value >> 12",
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"if (exponent >= 0x0008):",
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"exponent = -((0x000F + 1) - exponent)",
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"output = 0",
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"if (mantissa >= 0x07FE and mantissa <= 0x0802):",
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"output = reserved_float_values[mantissa]",
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"else:",
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"if (mantissa >= 0x0800):",
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"mantissa = -((0x0FFF + 1) - mantissa)",
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"magnitude = pow(10.0, exponent)",
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"output = (mantissa * magnitude)",
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"return output",
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"length = len(blood_pressure_measurement)",
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"flags = blood_pressure_measurement[length - 1]",
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"timestamp_len = 7 if (flags & 0x02) else 0",
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"oic.r.pulserate.pulserate = ieee11073_Sfloat_2_Float(blood_pressure_measurement[length - 7 - timestamp_len - 2 : length - 7 - timestamp_len])"
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],
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"x-from-ocf": [
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"N/A"
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]
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}
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}
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}
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}
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},
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"type": "object",
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"allOf": [
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{ "$ref": "#/definitions/byte" },
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{ "$ref": "#/definitions/byteArray" },
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{ "$ref": "#/definitions/org.bluetooth.characteristic.blood_pressure_measurement" }
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],
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"required": [
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"blood_pressure_measurement[length - 3 : length - 1]",
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"blood_pressure_measurement[length - 5 : length - 3]"
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]
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}

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