The Echo Manual: Oh MD, Jae K., Kane MD PhD, Garvan C.: 9781496312198: Amazon.com: Books,The Echo Manual,The Echo Manual: Oh MD, Jae K., Kane MD PhD, Garvan C.: 9781496312198: Amazon.com: Books,Amazon.com: The Echo Manual eBook : Oh, Jae K., Seward, James B., Tajik, A. Jamil: Books,The Echo Manual by James B. Seward, Jae K. Oh and A. Jamil Tajik (1998, 9780781712057 | eBay