参考文献

Erba S.p.A. Patent: US2759944 , 1953 ; Full Text Show Details Erba S.p.A. Patent: DE1008291 , 1952 ; Full Text Show Details Erba S.p.A. Patent: DE1012301 , 1957 ; Full Text Show Details Pfizer and Co. Patent: US2837527 , 1952 ; Full Text Show Details Logemann Farmaco, Edizione Scientifica, 1952 , vol. 7, p. 430,432