Discordant allergic manifestations in monozygotic twins: genetic identity versus clinical, physiologic, and biochemical differences.

Adenosine Triphosphatases/analysis Adenylyl Cyclases/analysis Adolescent Adult Asthma/enzymology,genetics Blood Group Antigens Cell Membrane/enzymology Chronic Disease Diseases in Twins Female Genetics, Medical Genotype Humans Hypersensitivity/genetics Immunoglobulin E/analysis Leukocytes/enzymology Methacholine Compounds/toxicity Physical Exertion Radiography, Thoracic Respiratory Function Tests Skin Tests Spirometry

Blood Group Antigens Methacholine Compounds Immunoglobulin E Adenosine Triphosphatases Adenylyl Cyclases