{HEAD ~ A discussion} of prodrugs is provided in {TAIL ~ T. Higuchi} and V. Stella, Pro drugs as Novel Delivery Systems 14 of the A.C.S. Symposium Series, and in Bioreversible Carriers in Drug Design, Edward B. Roche, ed., American Pharmaceutical Association and Pergamon Press 
is provided in
{ HEAD ~ A discussion } of prodrugs is provided in { TAIL ~ T. Higuchi } and V. Stella , Pro drugs as Novel Delivery Systems 14 of the A.C.S. Symposium Series , and in Bioreversible Carriers in Drug Design , Edward B. Roche , ed . , American Pharmaceutical Association and Pergamon Press
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