1. Serologic aspects of IgG., antibodies 1. Prolonged immunization results in an IgG4—restricted response;Aalberse;J Immunol,1983
2. Selective immunoglobulin G4 deficiency and recurrent infections of the respiratory tract;Beck;Am Rev Respir Dis,1981
3. Interferon-gamma activated human monocytes inhibit the intracellular multiplication of Legionella pneumophila.;Bhardwaj;J Immunol,1986
4. Bronchus-associated lymphoid tissue;Bienenstock,1984
5. Immunoglobulin levels in bronchoalveolar lavage fluid from pigeon breeders;Calvanico;J Lab Clin Med,1980