G. E. Johnson

Prevalence of Major Anatomic Variations in Oral Clefts

R. T. Lie, A. Wilcox, H. Vindenes, 2008, Plastic and reconstructive surgery.

Interdisciplinary Evaluation of Consecutive Patients With Unilateral Cleft Lip and Palate at Age 6, 15, and 25 Years: A Concurrent Standardized Procedure and Documentation by Plastic Surgeon; Speech and Language Pathologist; Ear, Nose, and Throat Specialist; and Orthodontist

A. Holmefjord, H. Vindenes, R. Tindlund, 2009, The Journal of craniofacial surgery.

A six-year follow-up study of 155 children with cleft lip and palate.

G. E. Johnson, H. Schjelderup, 1983, British journal of plastic surgery.