1.
Sarkar M, Dasgupta U, Bhattacharya S, Bhattacharyya KD, Bhattacharya SK. Status of oral polio vaccination program for international travellers and its determinants: an experience from a designated centre of West Bengal. Int J Community Med Public Health [Internet]. 2017 Mar. 28 [cited 2023 May 28];4(4):1223-9. Available from: https://www.ijcmph.com/index.php/ijcmph/article/view/1033