title: Research study design.
authors.affiliation: Department of Pediatrics, Louisiana State University Health Sciences Center, Shreveport, Louisiana 71103-3932, USA. sbahna@lsuhsc.edu
authors.forename: Sami L
authors.initials: SL
authors.lastname: Bahna
authors.forename: Steven A
authors.initials: SA
authors.lastname: Conrad
mesh_terms: D002986:Clinical Trials as Topic; D016021:Epidemiologic Studies; D006801:Humans; D012107:Research Design; D011795:Surveys and Questionnaires