PubMed=5452761; DOI=10.1093/oxfordjournals.jbchem.a129328
Yasuo Kagawa, Toshiko Takaoka, Hajim Katsuta;
Absence of essential fatty acids in mammalian cell strains cultured in lipid-and protein-free chemically defined synthetic media.
J. Biochem. 68:133-136(1970)

PubMed=4328993; DOI=10.1016/0014-4827(71)90412-5
Toshiko Takaoka, Hajim Katsuta;
Long-term cultivation of mammalian cell strains in protein- and lipid-free chemically defined synthetic media.
Exp. Cell Res. 67:295-304(1971)

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)

DOI=10.1247/csf.5.315
Kazuko Tsuneoka, Mikio Shikita;
Production of granulocyte-macrophage colony-stimulating factors (GM- CSF) by various mammalian cell lines cultured in a protein-free synthetic medium.
Cell Struct. Funct. 5:315-321(1980)