1. Bianchi, Boll. soc. med.-chir. Pavia1933, 811; Ref. Zbl. Path.62, 199 (1935).
2. Gaetani, De, Pathologica (Genova)24, Nr. 490, 541 (1932); Ref. Zbl. Path.56, 390 (1933).
3. Hotes, Inaug.-Diss. Leipzig 1910.
4. Hotz, Schweiz. med. Wschr.1921, 12–14.
5. Iwasaki, Arch. klin. Chir.104, 84 (1914).