James L. Gutmann 저자 James L. Gutmann은 DDS, Cert Endo, PhD (honoris causa), FACD, FICD, FADI Professor Emeritus, Department of Restorative Sciences Baylor College of Dentistry Texas A&M University System, Health Science Center Dallas, Texas; Diplomate, American Board of Endodontics Honorary Professor, School of Stomatology Wuhan University Wuhan, China