title: Letter: Serum alpha-fetoprotein in cystic fibrosis.
mesh_terms: D002648:Child; D003376:Counseling; D003550:Cystic Fibrosis / Q000097:blood* / Q000235:genetics; D005326:Fetal Proteins / Q000032:analysis*; D006801:Humans; D011863:Radioimmunoassay; D000509:alpha-Fetoproteins / Q000032:analysis*
chemical_list: D005326:Fetal Proteins; D000509:alpha-Fetoproteins