title: Response to "Letter to the Editor: BMP4 Polymorphism and Nonsyndromic Oral Cleft".
authors.affiliation: Research Fellow, Department of Pediatric Clinic, Ribeirão Preto Dental School, USP-University of São Paulo, Ribeirão Preto, SP, Brazil, erikacalvano@gmail.com.
authors.forename: Erika Calvano
authors.initials: EC
authors.lastname: Küchler
authors.affiliation: Directory of Programs, National Institute of Metrology, Quality and Technology (INMETRO), Duque de Caxias, RJ, Brazil jmgranjeiro@gmail.com .
authors.forename: Jose Mauro
authors.initials: JM
authors.lastname: Granjeiro
authors.affiliation: Adjunct Professor, Departament of Specific Formation, Fluminense Federal University-UFF, Nova Friburgo, Brazil leonardoantunes@id.uff.br .
authors.forename: Leonardo Santos
authors.initials: LS
authors.lastname: Antunes