1. Congenital absence of both lungs;Allen; Affelbach;Surgery, Gynecology and Obstetrics,1925
2. Unilateral pulmonary agenesis;Booth, J.B.; Berry, C.L.;Archives of Diseases in Childhood,1967
3. Bilateral pulmonary agenesis;Claireaux, A.E.; Ferreira, H.P.;Archives of Diseases in Childhood,1958
4. Congenital absence of lung;Ellis, A.G.;Anerican Journal of Medical Science,1917
5. Hamilton, W. J., Boyd, J. D., and Mossman, H. W. (1966). Human Embryology, 3rd (revised) edition. Heffer, Cambridge.