Pencegahan Kanker Penelitian Marcus Johnson CANCER PREVENTION, CLINICAL TRIALS, COLUMBIA ENGINEERING, DANA FARBER CANCER INSTITUTE, EL, ELHAM AZIZI, HEALTHCARE, HPV VACCINE, MEDICINE, NATIONAL CANCER INSTITUTE, NEW YORK, NORTH AMERICA, RESEARCH, TRIBUNE, U. S, UNITED STATES, US Penemuan Sel Imun Unik Dapat Tingkatkan Pengobatan Kanker