Pencegahan Kanker Penelitian Marcus Johnson ADAM DUVALL, AMERICAN CANCER SOCIETY, BMJ ONCOLOGY, CANCER PREVENTION, CATHERINE, PRINCESS OF WALES, CHAD, CHADWICK BOSEMAN, DISEASE PREVENTION, HPV VACCINE, MEDICINE, NUTRITION, RESEARCH, UCHICAGO MEDICINE, UNIVERSITY OF CHICAGO MEDICINE COMPREHENSIVE CANCER CENTER Mengapa Lebih Banyak Orang Muda Terkena Kanker?