title: Testicular volume during adolescence. Cross-sectional and longitudinal studies.
mesh_terms: D000367:Age Factors; D000886:Anthropometry; D005640:Follicle Stimulating Hormone / Q000378:metabolism; D005500:Follow-Up Studies; D006128:Growth; D006197:Hair; D006801:Humans; D007985:Leydig Cells / Q000378:metabolism; D008297:Male; D010413:Penis / Q000254:growth & development; D010902:Pituitary Gland / Q000378:metabolism; D011627:Puberty; D013737:Testis / Q000254:growth & development*; D013739:Testosterone / Q000378:metabolism
chemical_list: D013739:Testosterone; D005640:Follicle Stimulating Hormone