title: Klinefelter syndrome, tumor, and sexual precocity.
mesh_terms: D002648:Child; D002675:Child, Preschool; D006063:Chorionic Gonadotropin / Q000097:blood; D005640:Follicle Stimulating Hormone / Q000097:blood; D006222:Hamartoma / Q000150:complications / Q000378:metabolism; D006801:Humans; D007223:Infant; D007713:Klinefelter Syndrome / Q000150:complications* / Q000503:physiopathology; D007986:Luteinizing Hormone / Q000097:blood; D008297:Male; D009373:Neoplasms, Germ Cell and Embryonal / Q000150:complications* / Q000378:metabolism; D011629:Puberty, Precocious / Q000209:etiology*; D013724:Teratoma / Q000150:complications / Q000378:metabolism; D013739:Testosterone / Q000097:blood
chemical_list: D006063:Chorionic Gonadotropin; D013739:Testosterone; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone