Yiyi, Yan MD, Ph.D.Attending and Clinical Assistant ProfessorHematology/Oncology Internal Medicine Education: Shanghai, Shanghai Jiaotong Univ. Sch of MedMain Office:352-273-7839 Mayo Clinic - Minnesota 200 1st St SW Rochester, MN 55905 Certification:Board Certified in Hematology/Oncology, Internal Medicine