Phenotypic data generally refers to any data related to an individual's observable traits. The “individual” may be a participant, a sample, a project, or any desired primary focal point of a Dataset. Phenotypic data may contain a wide range of data; determinants, status, and measures of health, to documentation of care delivery, such as clinical data, general practitioner’s (GP) notes, or even telemetrics. It may also contain molecular biomarker data converted to a phenotypic style for easier analysis and categorization. As Apollo has a bring-your-own-schema structure, phenotypic data ingestion can support most data structures with single paths from the main entity to other entities (no circular references).