PubMed=4340679
Nam-Ho Huh, Toshiko Takaoka, Hajim Katsuta;
Tissue culture of rat ascites hepatoma AH-601 cells.
Jpn. J. Exp. Med. 42:249-262(1972)

PubMed=4358144; DOI=10.1093/jnci/51.6.1841
Hajim Katsuta, Toshiko Takaoka, Shigeru Yasumoto;
Toxic metabolites released from rat hepatoma cells in culture. I Effects of metabolites of hepatomas on various cells.
J. Natl. Cancer Inst. 51:1841-1844(1973)

PubMed=171466
Toshiko Takaoka, Hajim Katsuta, Toshitaka Akatsuka;
Carcinogenesis in tissue culture 24: tumorigenicity and aggregate-forming capacity of mammalian cells in culture.
Jpn. J. Exp. Med. 45:299-312(1975)

PubMed=8390914; DOI=10.1007/BF00755143
Masao Kondo, Norio Hirota, Toshiko Takaoka, Masahiro Kajiwara;
Heme-biosynthetic enzyme activities and porphyrin accumulation in normal liver and hepatoma cell lines of rat.
Cell Biol. Toxicol. 9:95-105(1993)