Population variation in age-related decline in male salivary testosterone
Ellison P, Bribiescas R, Bentley G, Campbell B, Lipson S, Panter-Brick C, Hill K. Population variation in age-related decline in male salivary testosterone. Human Reproduction 2002, 17: 3251-3253. PMID: 12456632, DOI: 10.1093/humrep/17.12.3251.Peer-Reviewed Original Research