title: Letter: Serum alpha-fetoprotein in cystic fibrosis.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003550:Cystic Fibrosis / Q000097:blood* / Q000235:genetics; D005326:Fetal Proteins / Q000032:analysis*; D006801:Humans; D007223:Infant; D000509:alpha-Fetoproteins / Q000032:analysis*
chemical_list: D005326:Fetal Proteins; D000509:alpha-Fetoproteins