Livestrong 832,531
Diane Abbott 416,283
Ben Goldacre 456,781
Macmillan Cancer Support 658,615
sonu sood 17,496,780
Mayo Clinic 1,984,681
CDC Emergency 1,898,010
Rahul Bose 1,836,334
detikHealth 1,823,982
WIRED Science 1,821,065
RelayForLife 46,454
The Leukemia & Lymphoma Society 40,827
Tom Heston 40,165
YouWeCan 28,689
Dr Prem Jagyasi | DrPrem.com 26,186
Dr. Drew 2,571,020
Ben & Candy Carson 2,335,123
Dr. Sanjay Gupta 2,317,563
Cleveland Clinic 1,799,545
NIH 1,705,282