Angel by My Side : The True Story of a Dog Who Saved a Man¹and a Man Who Saved a Dog, Paperback by Lingenfelter, Michael, ISBN 1401900585, ISBN-13 9781401900588, Brand New, Free shipping in the US

Relates how a golden retriever named Dakota became an invaluable companion for Mike Lingenfelter during his recovery from two serious heart attacks and open heart surgery.