title: Transplantation studies on an induced fibrosarcoma in several rat strains. I. Influence of sex on incidence of tumor takes.
authors.forename: M
authors.initials: M
authors.lastname: KLEIN
mesh_terms: D000818:Animals; D005354:Fibrosarcoma; D015994:Incidence; D009369:Neoplasms; D051381:Rats; D012509:Sarcoma