1. Abel, R.M., R.J. Luchi, G.W. Peskin, H.L. Conn, Jr., and L.D. Miller: J. Pharmacol, exp. Ther. 150, 463 (1965).
2. Ashley, J.J., B.T. Brown, G.T. Okita, and S.E. Wright: J. biol. Chem. 232, 315 (1958).
3. Benthe, H.F., u. K. Chenpanich: Arzneimittel-Forsch. 15, 486 (1965).
4. Brodie, B.B.: In: T.B. Binns: Absorption and distribution of drugs, p. 16. Edinburgh-London: E.& S. Livingstone LTD. 1964.
5. Brown, B.T., S.E. Wright, and G.T. Okita: Nature (Lond.) 180, 607 (1957).