%0 Journal Article %T Excessive Attenuation of Measles Virus as a Possible Cause of Failure in Measles Immunization %J Archives of Razi Institute %I Razi Vaccine & Serum Research Institute %Z 0365-3439 %A Sassani, A. %A Mirchamsy, H. %A Shafyi, A. %A Hakemi, M.T. %A Achtiani, M.P. %D 1989 %\ 02/01/1989 %V 40 %N 1 %P 69-74 %! Excessive Attenuation of Measles Virus as a Possible Cause of Failure in Measles Immunization %R 10.22092/ari.1989.108983 %X %U https://archrazi.areeo.ac.ir/article_108983_55e3f655c97a248c61a3ee6bb97c8357.pdf