title: [Studies on cyclic variations of human plasma testosterone levels (Part 1). Daily changes in a month].
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D010507:Periodicity; D013739:Testosterone / Q000097:blood*; D013997:Time Factors
chemical_list: D013739:Testosterone