1. Lobeck Graefes Arch.143, 501–520 (1941).
2. Cushing: Bull. Hopkins Hosp.50, 137 ff. (1932).
3. Wijnbladh u.Nielsen Acta chir. scand. (Stockh.)82, 125 (1939).
4. Vgl. hierüberLobeck: Graefes Arch.133, 152 ff. (1934);136, 439 ff. (1937);142, 242 ff. (1940).
5. Lobeck: Graefes Arch.143, 501 ff. (1941).