Proband

Medical subject being studied and reported on

In medical genetics and other medical fields, a proband, proposito, or proposita is a particular subject being studied or reported on. On pedigrees, the proband is noted with a square (male) or circle (female) shaded accordingly. Denoting the proband is important, so the relationship to other individuals can be seen and patterns established.

This keyword could refer to multiple things. Here are some suggestions: