The relationship between obesity, hemoglobin A1c and the severity of COVID-19 at an urban tertiary care center in New York City: a retrospective cohort study oleh Gurchetan Randhawa, Kunzah A Syed, Kavish Singh, Sanchit V Kundal, Sharad Oli, Michael Silver, Sumrah A Syed, Thanunthorn Suban Na Ayutthaya, Shanado Williams, Zachary L Lodato, Vladimir Rozvadovskiy, Stephan Kamholz, Lawrence Wolf