title: How did the PSA system arise?
authors.affiliation: Liberal Studies Program, University of Montana Missoula, MT 59812, USA.
authors.forename: Stewart
authors.initials: S
authors.lastname: Justman
mesh_terms: D001943:Breast Neoplasms / Q000000981:diagnostic imaging / Q000266:history; D005260:Female; D006293:Health Promotion / Q000266:history; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D008297:Male; D008327:Mammography / Q000266:history*; D008403:Mass Screening / Q000266:history*; D017430:Prostate-Specific Antigen / Q000097:blood / Q000266:history*; D011471:Prostatic Neoplasms / Q000175:diagnosis / Q000266:history*
chemical_list: D017430:Prostate-Specific Antigen