a)Based on the location of the headquarters.
Abbreviations: DFG, Deutsche Forschungsgemeinschaft (German Research foundation); HHS, Health and Human Services; IRP, Intramural Research Program; NCI, National Cancer Institute; NCRR, National Center for Research Resources; NHLBI, National Heart, Lung, and Blood Institute; NIAID, National Institute of Allergy and Infectious Diseases; NIDDK, National Institute of Diabetes and Digestive and Kidney Diseases; NIEHS, National Institute of Environmental Health Sciences; NIGMS, National Institute of General Medical Sciences; NIH, National Institutes of Health; NNSF, National Natural Science Foundation of China; PHS, Public Health Service.