Epidemiological Investigation of Sex Differences by Cleft Phenotype and Extent in Cleft Lip and/or Palate: The Cohort Study of 4548 Japanese Patients.
Cleft lip and/or palate (CL/P) shows well-recognized sex differences, with a male predominance in cleft lip (CL) and cleft lip and palate (CLP), and a female predominance in isolated cleft palate (CP). However, how these differences vary according to detailed cleft patterns and extent remains unclear. This retrospectiv...