Rao, B. N., A. Rekha, A. S. Narayan, and A. Manjusha. “Takotsubo Cardiomyopathy Complicating a Twin Pregnancy at Partum”. International Journal of Research in Medical Sciences, vol. 7, no. 11, Oct. 2019, pp. 4375-8, doi:10.18203/2320-6012.ijrms20195020.