@article{article, title = {{[Study of the effectiveness of an inactivated influenza vaccine in intra nasal administration. II. Observations made during the epidemic of December 1972].}}, year = {{1973}}, month = {{1}}, author = {{Cajal N and Sărăţeanu D and Petrescu A and Mihail A and Popescu A and Teodosiu O}}, volume = {{24}}, journal = {{Stud Cercet Virusol}}, issue = {{5}}, pages = {{357-362}}, note = {{Accessed on 2026/10/11}}}