**About the Editors**

**Anne Roivainen** (Ph.D.) is Professor of Preclinical Imaging and Drug Research at the Turku PET Centre, University of Turku, Finland. She is medical biochemist with a background in molecular biology and immunology research of rheumatic diseases and, thereafter' 20 years' experience in molecular imaging, especially positron emission tomography and its modeling, tracer development, and preclinical and clinical applications.

**Xiang-Guo Li** (Ph.D.) is Adjunct Professor at the Turku PET Centre, University of Turku, Finland. He is a radiochemist and his research interests are in new radiopharmaceutical development, radiochemistry, and radiolabeling techniques in the field of positron emission tomography.
