SUPPRESSING EFFECTS OF KIW I FRUIT ON 6-THIOGUANINE-RESISTANT MUTATION INDUCED BY MNNG IN g12 CELL L INE Carcinogenesis, Teratogenesis & Mutagenesis . 1997, (2): 112 -115 .  DOI: 10.3969/j.issn.1004-616x.1997.02.012