1. Department
of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi 710032, China
2. Molecular
Imaging Program at Stanford (MIPS), Department of Radiology, Bio-X
Program and Canary Center at Stanford for Cancer Early Detection, Stanford University, Stanford, California 94305, United States
3. United
States Department of Agriculture, National Soil Tilth Laboratory, Ames, Iowa 50011, United States