1. Enamel hypoplasia (chronologic enamel aplasia) in relation to systemic disease: a chronologic, morphologic and etiologic classification;Sarnat;JADA,1942
2. Enamel hypoplasia in human teeth: an examination of its causes;Giro;JADA,1947
3. The development of the human dentition;Schour;JADA,1941
4. Studies on the incidence and cause of dental defects in children. II. Hypoplasia;Brucker;J.D. Res.,1943