
Research Methods for Clinical Therapists: Applied Project Design and Analysis: Amazon.co.uk: Hicks, Carolyn M.: 9780702029981: Books,

Designing Clinical Research : Stephen B. Hulley, Steven R. Cummings, Warren S. Browner, Deborah G. Grady, Thomas B. Newman: Amazon.co.uk: Books,

Designing Clinical Research: Hulley, Stephen B., Cummings, Steven R., Browner, Warren S., M.D., Grady, Deborah G., M.D., Newman, Thomas B., M.D.: 9780781782104: Amazon.com: Books,

Designing Clinical Research Fifth Edition,
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An overview of clinical research: the lay of the land - The Lancet