A., R., N. M. R., V. G. S., V. K., and R. M. “Risk Factors for Preterm Birth: A Community Based Longitudinal Study in Rural Mysuru, Karnataka, India”. International Journal Of Community Medicine And Public Health, vol. 3, no. 12, Dec. 2016, pp. 3576-80, doi:10.18203/2394-6040.ijcmph20164294.