Marcus Johnson Februari 7, 2025 AA, AASMA SHAUKAT, CANCER PREVENTION, CLINICAL TRIALS, GI MEDICAL ONCOLOGY, GROSSMAN SCHOOL OF MEDICINE, HPV VACCINE, MEDICINE, NEWS18, NORTH AMERICA, NYU, PAMELA KUNZ, RESEARCH, SAN FRANCISCO, SCIENCE, U. S, UNITED STATES, YALE, YALE SCHOOL OF MEDICINE