title: CNR external quality control program for hLH, hFSH, hPRL and hCG: first-semester experience.
mesh_terms: D006063:Chorionic Gonadotropin / Q000097:blood; D005260:Female; D006062:Gonadotropins / Q000097:blood*; D006801:Humans; D007558:Italy; D007753:Laboratories / Q000592:standards*; D007986:Luteinizing Hormone / Q000097:blood; D008596:Menotropins / Q000097:blood; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011388:Prolactin / Q000097:blood; D011786:Quality Control; D011863:Radioimmunoassay / Q000592:standards*
chemical_list: D006063:Chorionic Gonadotropin; D006062:Gonadotropins; D008596:Menotropins; D011388:Prolactin; D007986:Luteinizing Hormone