title: Author response.
authors.affiliation: Department of Pediatrics, Division of Pediatric Allergy and Immunology, Ondokuz Mayıs University, Samsun, Turkey. Electronic address: drmhc@hotmail.com.
authors.forename: Mehmet Halil
authors.initials: MH
authors.lastname: Celiksoy
authors.affiliation: Department of Pediatrics, Division of Pediatric Allergy and Immunology, Inonu University Turgut Ozal Medical Center, Malatya, Turkey.
authors.forename: Erdem
authors.initials: E
authors.lastname: Topal
authors.affiliation: Department of Pediatrics, Division of Pediatric Allergy and Immunology, Ondokuz Mayıs University, Samsun, Turkey.
authors.forename: Recep
authors.initials: R
authors.lastname: Sancak
mesh_terms: D000361:Agammaglobulinemia / Q000453:epidemiology* / Q000276:immunology*; D003876:Dermatitis, Atopic / Q000453:epidemiology* / Q000276:immunology*; D005260:Female; D006801:Humans; D007074:Immunoglobulin G / Q000097:blood*; D008297:Male
chemical_list: D007074:Immunoglobulin G