Tripathy, S. R., A. Menon, B. Bhardwaj, M. A. A. S. Namaji, N. A. Khardenavis, and N. Gupta. “Seroprevalence of Rubella in Pregnant Women”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 10, no. 12, Nov. 2021, pp. 4512-6, doi:10.18203/2320-1770.ijrcog20214651.