title: Letter: The optimum time to operate for cryptorchidism.
mesh_terms: D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D006063:Chorionic Gonadotropin / Q000627:therapeutic use; D003456:Cryptorchidism / Q000188:drug therapy / Q000601:surgery*; D006801:Humans; D008297:Male; D010908:Pituitary Hormones, Anterior / Q000627:therapeutic use; D011584:Psychology
chemical_list: D006063:Chorionic Gonadotropin; D010908:Pituitary Hormones, Anterior