title: Tumour resistance in ovum fusion derived tetraparental AKR mouse chimaeras.
mesh_terms: D000818:Animals; D002459:Cell Fusion; D005823:Genetics; D051379:Mice; D008806:Mice, Inbred AKR; D009030:Mosaicism; D009368:Neoplasm Transplantation; D009374:Neoplasms, Experimental / Q000276:immunology*