AU - HEKİMOĞLU, Can Hüseyin TI - Vaccine epidemiology: Observational vaccine safety study designs PT - Journal Article DP - 2021 TA - Turk Hij Den Biyol Derg PG - 219-232 VI - 78 IP - 2 AID - 10.5505/TurkHijyen.2021.29567 [doi] 4100 - https://dx.doi.org/10.5505/TurkHijyen.2021.29567 SO - Turkish Bulletin of Hygiene and Experimental Biology, 2021 78(2):219