Scheffler, Neil M. 21 things you need to know about diabetes and your feet / Twentyone things you need to know about diabetes and your feet. Neil M. Scheffler. - Alexandria, Virginia : American Diabetes Association, 2012. - vi, 90 p. ; 23 cm. ISBN: 9781580404778 RM40.96 Subjects--Topical Terms: Diabetes mellitus.Foot Diseases.