Tham khảo Zipeprol

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↑ Rispat, G.; Burgi, H.; Cosnier, D.; Duchêne-Marullaz, P.; Streichenberger, G. (1976). “General pharmacological properties of a new non-opiate antitussive: Zipeprol (3024 CERM). I. Action on respiratory function and acute toxicity”. Arzneimittel-Forschung 26 (4): 523–530. PMID 8057.
↑ Chung, H.; Park, M.; Hahn, E.; Choi, H.; Choi, H.; Lim, M. (2004). “Recent Trends of Drug Abuse and Drug-Associated Deaths in Korea”. Annals of the New York Academy of Sciences 1025: 458–464. PMID 15542749. doi:10.1196/annals.1316.056.

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