1. Abbott Laboratories, Brit. P. 918217; ref. C.A. 59, 3831 d (1963).
2. Abbott Laboratories, Belg. P. 622996; ref. C.A. 60, 9201c (1964).
3. Abbott Laboratories, Span. P. 281171; ref. C.A. 60, 2904c (1964).
4. Abbott Laboratories, Brit. P. 977810; ref. C. 137, 38–1738 (1966).
5. E. Adami und E. Marazzi, Arch. ital. sci. farmacol. 5, 131 (1955); ref. C.A. 50, 12306 c (1956).