[Transplantable mast cell tumor and the thymus].
D000818:Animals; D008407:Mast Cells; D051379:Mice; D009368:Neoplasm Transplantation; D009374:Neoplasms, Experimental / Q000276:immunology*; D013934:Thymectomy; D013950:Thymus Gland / Q000502:physiology*