The Mayo Clinic Guide to Your Baby's First Years: 2nd Edition, Revised and Updated

Author Bio: Dr. Walter Cook

Walter J. Cook, MD, is an award-winning pediatrician and assistant professor of pediatrics at the Mayo Clinic’s College of Medicine in Rochester, Minnesota, where he focuses on community pediatric and adolescent medicine research. He is the present course director for Mayo Clinic Pediatric Days, Mayo Clinic Summer Pediatric Review, and the Rochester-Mayo Clinic T. Denny Sanford Pediatric Symposium. As a father of three, including twins, he has placed a special emphasis on providing exceptional care for thousands of infants and children for more than twenty-five years and has been recognized as a “Best Doctor in America” by the Minneapolis/St. Paul Business Journal.

Kelsey M. Klaas, MD, is a pediatrician in general pediatric and adolescent medicine at Mayo Clinic Children’s Center in Rochester, Minnesota. She serves as the associate pediatric clerkship director for the Mayo Clinic Alix School of Medicine and as an advisor for the Mayo Medical School Advisory Program. Her practice focuses on children with complex health conditions, like dysautonomia, POTS, neurodevelopmental disorders, and types of genetic disorders.