title: On call. I've been tracking my PSA ever since I turned 50, 11 years ago. Since I just moved from St. Louis to Denver, my next test will be done in a new lab. Will the change in labs affect my levels?
authors.forename: Harvey B
authors.initials: HB
authors.lastname: Simon
mesh_terms: D006801:Humans; D008297:Male; D008875:Middle Aged; D017430:Prostate-Specific Antigen / Q000097:blood*; D015203:Reproducibility of Results
chemical_list: D017430:Prostate-Specific Antigen