Kumar DA. Real-time Study for Uses of Opened Multidose Vials of Live Attenuated Bivalent Oral Polio Vaccine: Real-time Study for Uses of Opened Multidose Vials of Live Attenuated Bivalent Oral Polio Vaccine. ijpba [Internet]. 2020 Sep. 15 [cited 2024 Nov. 24];11(3). Available from: http://ijpba.info/index.php/ijpba/article/view/1890