1. Mallory, J. med. Res.42, 461 (1920/21); vgl. auch ebenda J. med. Res.44, 107 (1924).
2. , Amer. J. Path.1, 118 (1925).
3. Schönheimer undOshima, Hoppe-Seylers Z.180, 252 (1929).
4. Elvehjem undLindow, J. of biol. Chem.81, 435 (1928).
5. Spacu, Chem. Ztrlbl. 1922 II., 737.