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N. J. Harper, A. Beckett, T. Watts, 1959 .

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N. J. Harper, A. Beckett, A. Balon, 1960 .

SCIENCE PAPERS:POTENTIAL ANALGESICS. THE STEREOCHEMISTRY OF SOME ISOMERIC PIPERIDINOL DERIVATIVES

N. J. Harper, A. Beckett, A. Balon, 1959 .