1. Merchant SM. Indian council of medical research: annual report. Genetic Research Centre: Bombay; 1989.
2. Rajangam S, Devi R. Consanguinity and chromosomal abnormality in mental retardation and multiple congenital anomalies. J Anat Soc India. 2007;56:30–3.
3. Zeitlin J, Mohangoo A, Cuttini M, Committee ERW, Alexander S, Barros H, et al. The European Perinatal Health Report: comparing the health and care of pregnant women and newborn babies in Europe. J Epidemiol Community Health. 2009;63(9):681–2.
4. Sheth J, Sheth F, Oza N, Dishi M. Triple marker study in mid-trimester of pregnancy and risk of chromosomal abnormality. J Obstet Gynecol India. 2008;58:142–6.
5. Alfirevic Z, Sundberg K, Brigham S. Amniocentesis and chorionic villus sampling for prenatal diagnosis. Cochrane Database Syst Rev. 2003;3, CD003252.