About this book
- ISBN-13
- 9781138740983
- Publisher
- CRC Press
Verified US edition — ISBN 9781138740983
ISBN 9781138740983 identifies Sample Size Calculations in Clinical Research, published by CRC Press. Every copy Book Shop Now ships against this ISBN is the genuine US-edition print run from the original publisher's authorized US distribution — no overseas reprints, no scanned facsimiles, no "international edition" rebranding. Verify this ISBN against your professor's syllabus before checkout.
About CRC Press
Routledge and its sister imprints CRC Press, Focal Press, and Taylor & Francis are part of Informa plc — together producing reference works across counseling, social sciences, language studies, engineering, and academic specialties. CRC Press's medical and clinical references (50 Landmark Papers series, surgical atlases) are board-prep staples. Routledge social-sciences titles dominate graduate-level reading lists. We source Routledge family titles directly from authorized US distribution.
How students use this book
Pharmacology textbooks are highest-yield when used alongside Anki-style spaced repetition for drug names, mechanisms, and adverse effects. Read full chapters during course progression, then transition to drug-class flashcards for retention. NCLEX and USMLE Step 1 question banks consistently test pharmacology more than any other content area — keep this reference accessible through the entire prep cycle, not just course exams.
How Book Shop Now sources this title
Every book Book Shop Now ships is sourced directly from US publishers or their authorized US distributors — never from overseas grey-market resellers, marketplace commingled inventory, or scanned facsimile reprints. We do not sell "international edition" copies relabeled as US editions, and we do not accept loose-leaf substitutions for hardcover orders. Each shipment is inspected against the listed ISBN before dispatch, ships from US warehouses with 1-3 business day handling, and is covered by a 14-day return policy on books that arrive damaged or mismatched. Read our guide to spotting counterfeit textbooks →
