- Nuclear Oncology
- Molecular Imaging and Theranostics
- Bacteria-mediated Cancer Immunotherapy

1996 ~ 2000 Resident of Nuclear Medicine, Chonnam National University Hospital
2000 ~ 2001 Clinical Fellow of Nuclear Medicine, Seoul National University Hospital
2001 ~ 2004 Postdoctoral Fellow, UCLA School of Medicine & Stanford University School of Medicine
2004 ~ 2006 Assistant Professor, Chonnam National University Medical School
2006 ~ 2011 Associate Professor, Chonnam National University Medical School
2011 ~ Present Professor, Chonnam National University Medical School
2020 ~ 2022 President, Korean Society of Nuclear Medicine
2021 ~ Present Dean for Research Affairs, Chonnam National University
2021 ~ Present Fellow, World Molecular Imaging Society
2022 ~ Present President, Korean Society of Molecular Imaging

2015 The Academic Award of the Korean Society of Nuclear Medicine
2013 Seo Bong Academic Award, Chonnam National University Medical School
1998 The Young Investigator’s Award of the Korean Society of Nuclear Medicine