1. Maeda YY, Hamuro J, Yamada YO, Ishimura K, Chihara G (1973) Immunopotentiation. In: Wolstenholme GEW, Knight J (eds). Elsevier, Excerpta Medica, North-Holland, p 259
2. Maeda YY, Chihara G (1971) Nature 229: 634
3. Hamuro J, Röllinghoff M, Wagner H (1978) Cancer Res 38: 3080
4. Hamuro J, Wagner H, Röllinghoff M (1978) Cell Immunol 38: 328
5. Hamuro J, Röllinghoff M, Wagner H (1980) Immunology 39: 551