1. Astaldi, G. (1944). Bol. Soc. Med. Chir. Pavia, 58 1249.
2. Ibid., 22, 1165.
3. ---'. - (1948.) Haematologica, 31, 265.
4. -and Bernadelli, E. (1945). Bol. Soc. ital. Biol. sper., 20, 824.
5. -and Bernadelli, E. and Bernadelli, E. and Bernadelli, E. and Bernadelli, E. (1946). Minerva med., Torino, 37, 109.