[IX-2] Ebstein, Virch. Arch., vol. 55.

[IX-3] Bartels, Ziemssen's Hand., vol. IX, p. 373.

[IX-4] Iuergensen, Ziemssen's Hand., vol. V, p. 119.

[IX-5] Baer, Alcoholismus, pag. 283.

[IX-6] L. c., p. 310.