title: [Effects of morphine-nitrous oxide anesthesia and surgery on plasma levels of luteinizing hormone, testosterone and cortisol].
mesh_terms: D000768:Anesthesia, General; D006801:Humans; D006854:Hydrocortisone / Q000097:blood*; D007986:Luteinizing Hormone / Q000097:blood*; D008297:Male; D008875:Middle Aged; D009020:Morphine; D009609:Nitrous Oxide; D013514:Surgical Procedures, Operative; D013739:Testosterone / Q000097:blood*
chemical_list: D013739:Testosterone; D009020:Morphine; D007986:Luteinizing Hormone; D009609:Nitrous Oxide; D006854:Hydrocortisone