A nephrologist is a person who specializes in the branch of medical science that deals with the kidneys.

Machine Briefs:
Option #1: nephrologist= NEFLGT
Option #2: nephrologist= NEFRLGT
Option #3: nephrologist= TPHEF/OLGT
Option #4: nephrologist= TPHA/TPROLGT
Option #5: nephrologist= TPHA/FROL/JIFT