@article{bhattacharya_2007,  title={Struggling to a monumental triumph: re-assessing the final phases of the smallpox eradication program in India, 1960-1980},  volume={14},  ISSN={0104-5970},  url={https://doi.org/10.1590/S0104-59702007000400002},  DOI={10.1590/S0104-59702007000400002},  number={4},  journal={História, Ciências, Saúde-Manguinhos},  publisher={Casa de Oswaldo Cruz, Fundação Oswaldo Cruz},  author={Bhattacharya, Sanjoy},  year={2007},  month={Oct},  pages={1113–1129} }