Thomas, J., Anthoorathodi, J.B., Maria, G., Jose, F., George, G., Sreenivasan, H., Rahman, H.A., James, J.D. and G., U.U. 2021. A case control study on the risk factors of non-syndromic orofacial clefts. International Surgery Journal. 8, 6 (May 2021), 1844–1848. DOI:https://doi.org/10.18203/2349-2902.isj20212282.