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1INTRODUCTION OF MACROMELECULES INTO VIABLE MAMMALIAN CELLS: A WISTAR SYMPOSIUM WORKSHOP HELD AT SUGARLOAF CENTER PHILADELPHIA, PENNSYLVANIA, MAY 2-4, 1979 / INTRODUCTION OF MACROMELECULES INTO VIABLE MAMMALIAN CELLS: A WISTAR SYMPOSIUM WORKSHOP HELD AT SUGARLOAF CENTER PHILADELPHIA, PENNSYLVANIA, MAY 2-4, 1979 /Texto bibliotecaUAAAN MX