title: On the edge of facts and hypotheses.
authors.forename: M H
authors.initials: MH
authors.lastname: Schöni
mesh_terms: D000328:Adult; D017074:Common Variable Immunodeficiency / Q000150:complications* / Q000175:diagnosis / Q000276:immunology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D009165:Mycobacterium Infections, Nontuberculous / Q000175:diagnosis / Q000276:immunology; D009894:Opportunistic Infections / Q000175:diagnosis / Q000276:immunology; D012507:Sarcoidosis / Q000150:complications* / Q000175:diagnosis / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology