PhenX Toolkit
The PhenX (consensus measures for Phenotypes and eXposures) Toolkit is a web-based catalog of recommended measurement protocols of phenotypes and exposures suitable for inclusion in genomic, clinical, and translational research studies with human participants.
PhenX Significance

Protocol
A standard data collection procedure, recommended by a PhenX Working Group. Also referred to as a "measurement protocol".
Measure
A standard way of capturing data on a certain characteristic of, or relating to, a study subject.
Domain
A field of research or topic with a unifying theme, which may be a research area, disease, or condition, and with easily enumerated quantitative or qualitative measures.
