海量图书期刊资源，随时随地畅享阅读乐趣
Characterization and clinical evaluation of live influenza a vaccine prepared from a recombinant of the A/USSR/92/77 (H1N1) and the cold-adapted A/Ann Arbor/6/60 (H2N2) strainsVan Voorthuizen, Friso; Jens, Dorine; Saes, Frans · 1981