The process in which a relatively unspecialized cell acquires specialized structural and/or functional features of a Leydig cell. A Leydig cell is a testosterone-secreting cell in the interstitial area, between the seminiferous tubules, in the testis. [ GOC:ln http://www.ncbi.nlm.nih.gov/pubmed/12050120 ]
This is just here as a test because I lose it