Milham, S.Underreporting of Incidence of Cleft Lip and Palate, Amer. J. Dis. Child., 106:185-88, 1963.
2.
Gittelsohn, A.M., and Milham, S.Vital Record Incidence of Congenital Malformations in New York State. In Genetics and the Epidemiology of Chronic Diseases, U.S. Department of Health, Education and Welfare Publication No. 1163. Washington, D.C., U.S. Government Printing Office, 1965.
3.
Meskin, L.H.An Epidemiologic Study of Factors Related to the Extent of Facial Clefts. Ph.D. thesis, University of Minnesota, 1966.
4.
Harkins, C.S. , Berlin, A., Harding, R.L., Long-Acre, J.J., and Snodgrasse , R.M.A Classification of Cleft Lip and Cleft Palate, Plast. Reconstr. Surg., 29:31-39, 1962.
5.
Ivy, R.H.Congenital Anomalies as Recorded on Birth Certificates in the Division of Vital Statistics of the Pennsylvania Department of Health, for the Period 1956-1960 Inclusive, Plast. Reconstr. Surg. , 32:361-67, 1963.