The Merck Manual of Medical Information, Second Edition: The World's Most Widely Used Medical Reference - Now In Everyday Language

The Merck Manual of Medical Information, Second Edition: The World's Most Widely Used Medical Reference - Now In Everyday Language

The Merck Manual of Health & Aging: The comprehensive guide to the changes and challenges of aging-for older adults and those who care for and about them

The Merck Manual of Diagnosis and Therapy