Doesn't suit? No problem! You can return items for up to 30 days
You won't go wrong with a gift voucher. The gift recipient can choose anything from our offer.
Up to 30 days for returns
This book assists researchers in their estimation of the sample size for clinical trials. Throughout the book there are detailed worked examples to illustrate both how to do the calculations and how to present them.
Hi! I'm Libroamiko, your book advisor.
How can I help you?