Watkins SE, Meyer RE, Strauss RP, Aylsworth AS (April 2014). "Classification, epidemiology, and genetics of orofacial clefts". Clinics in Plastic Surgery. 41 (2): 149–63. doi:10.1016/j.cps.2013.12.003. PMID24607185.
nih.gov
pubmed.ncbi.nlm.nih.gov
Watkins SE, Meyer RE, Strauss RP, Aylsworth AS (April 2014). "Classification, epidemiology, and genetics of orofacial clefts". Clinics in Plastic Surgery. 41 (2): 149–63. doi:10.1016/j.cps.2013.12.003. PMID24607185.