David A, Leith-Ross F, Vallance DK (July 1957). "Antitussive and other pharmacological properties of the diethylaminoethoxyethyl ester of alpha alpha-diethylphenylacetic acid, (oxeladin)". The Journal of Pharmacy and Pharmacology. 9 (7): 446–58. doi:10.1111/j.2042-7158.1957.tb12297.x. PMID13439531.
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David A, Leith-Ross F, Vallance DK (July 1957). "Antitussive and other pharmacological properties of the diethylaminoethoxyethyl ester of alpha alpha-diethylphenylacetic acid, (oxeladin)". The Journal of Pharmacy and Pharmacology. 9 (7): 446–58. doi:10.1111/j.2042-7158.1957.tb12297.x. PMID13439531.