title: Questionnaire designing and validation.
authors: Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan. momin.kazi@aku.edu
authors: Abdul Momin
authors: AM
authors: Kazi
authors: Wardah
authors: W
authors: Khalid
mesh_terms: D006801:Humans; D012107:Research Design; D011795:Surveys and Questionnaires / Q000592:standards*; D014177:Translations