TY - GEN AU - Freeman,A E AU - Price,P J AU - Bryan,R J AU - Gordon,R J AU - Gilden,R V AU - Kelloff,G J AU - Huebner,R J TI - Transformation of rat and hamster embryo cells by extracts of city smog SN - 0027-8424 PY - 1971///0331 KW - Air Pollution KW - Benzopyrenes KW - pharmacology KW - Cell Line KW - Cell Transformation, Neoplastic KW - drug effects N1 - Publication Type: Journal Article UR - https://doi.org/10.1073/pnas.68.2.445 ER -