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- [32] ATTEMPTS TO ADAPT SOME STRAINS OF ORTHOMYXOVIRUS TYPE-A, SUBTYPE A-EQUI-2, BY SERIAL PASSAGES EITHER ON CALF KIDNEY-CELLS OR CHICK FIBROBLASTS OR RK-13 CELL LINE OR BY PASSAGES ALTERNATED WITH ONE PASSAGE INOVO BOLLETTINO DELL ISTITUTO SIEROTERAPICO MILANESE, 1975, 54 (04): : 253 - 271
- [33] SELECTION OF ATTENUATED DENGUE-4 VIRUSES BY SERIAL PASSAGE IN PRIMARY KIDNEY-CELLS .3. REVERSION TO VIRULENCE BY PASSAGE OF CLONED VIRUS IN FETAL RHESUS LUNG-CELLS AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE, 1984, 33 (04): : 672 - 678