https://pictures.abebooks.com/isbn/9781607951780-us.jpg Biostatistics, 4e@The Bare Essentials@By: Geoffrey Norman@Publisher: @people's Medical Publishing House@Print ISBN: 9781607951780, 1607951789@eText ISBN: 9781607952794, 1607952793@Edition: 4th@Format: EPUB@Available from $ 79.99 USD@SKU: 9781607952794 Ebooks here: https://ouo.io/HKlZtL