Ranjini C, and Rajagopal N. “Socioeconomic Inequalities in Out-of-Pocket Expenditure on Antenatal and Postnatal Care in India: A National Cross-Sectional Study”. National Journal of Community Medicine, vol. 17, no. 07, July 2026, pp. 586-95, doi:10.55489/njcm.170720266748.