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American Cancer Society 1,079,553
Livestrong 832,531
Macmillan Cancer Support 658,615
Caitríona Balfe 497,557
St. Jude 428,915
Stand Up To Cancer 288,618
National Cancer Institute 217,338
Kris_Carr 123,554
Susan G. Komen 113,331
AACR 106,164
Vanessa Riddle 66,916
SickKids Foundation 54,927
Moffitt Cancer Center 50,140
RelayForLife 46,454
The Leukemia & Lymphoma Society 40,827
Tom Heston 40,165
YouWeCan 28,689
Dr Prem Jagyasi | DrPrem.com 26,186
Breast Cancer Action 26,178
The Skin Cancer Foundation 22,369
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