With the advent of massively parallel sequencing, millions of raw sequence reads can no be easily produced for a patient's tumor. Largely automated pipelines now exist to process these raw data, detect various types of molecular alterations (or variants), filter and review to identify high-confidence calls, and annotate these variants for functional significance. However, a major bottleneck remains at the variant interpretation stage. Genome analysts, molecular pathologists, clinical geneticists, laboratory geneticists and others are faced with a deluge of variants of potential relevance [@Good2014]. These variants must be manually reviewed and intersected with a vast ecosystem of knowledgebases and biomedical literature to provide current interpretation of their relevance for clinical application.
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