title: alpha 1-antitrypsin phenotypes in rheumatoid arthritis and ankylosing spondylitis.
mesh_terms: D000483:Alleles; D001172:Arthritis, Rheumatoid / Q000235:genetics*; D006801:Humans; D010641:Phenotype; D013167:Spondylitis, Ankylosing / Q000235:genetics*; D000515:alpha 1-Antitrypsin / Q000235:genetics*
chemical_list: D000515:alpha 1-Antitrypsin