@article{article, title  = {{Preliminary data on the efficiency of an inactivated influenza vaccine administered by oral route.}},

 year = {{1974}},

 month = {{1}},

 author = {{Cajal N and Sărăteanu D and Petrescu A and Mihail A and Popescu A and Teodosiu O}},

 volume = {{25}},

 journal = {{Rev Roum Virol (1972)}},

 issue = {{1}},

 pages = {{23-27}},

 note = {{Accessed on 2026/10/11}}}