https://api.elsevier.com/content/article/pii/S0264410X11006888doi:10.1016/j.vaccine.2011.04.1221-s2.0-S0264410X1100688810.1016/j.vaccine.2011.04.122S0264-410X(11)00688-8Live attenuated pandemic influenza vaccine: Clinical studies on A/17/California/2009/38 (H1N1) and licensing of the Russian-developed technology to WHO for pandemic influenza preparedness in developing countries VaccineJournal0264410X2011-07-011 July 20111trueFullfalseElsevierBrandedhttp://creativecommons.org/licenses/by-nc-nd/3.0/