The association of COVID-19 infection in pregnancy with preterm birth: A retrospective cohort study in California oleh Deborah Karasek, PhD, MPH, Rebecca J. Baer, MPH, Monica R. McLemore, PhD, MPH, RN, FAAN, April J. Bell, PhD, MPH, Bridgette E. Blebu, PhD, MPH, Joan A. Casey, PhD, Kimberly Coleman-Phox, MPH, Jean M. Costello, Jennifer N. Felder, PhD, Elena Flowers, PhD, RN, Jonathan D. Fuchs, MD, MPH, Anu Manchikanti Gomez, PhD, MSc, Kayla Karvonen, MD, Miriam Kuppermann, PhD, MPH, Liang Liang, PhD, Safyer McKenzie-Sampson, MSPH, Charles E. McCulloch, PhD, Scott P. Oltman, MS, Matthew S Pantell, MD, MS, Xianhua Piao, MD, PhD, Aric A. Prather, PhD, Rebecca J. Schmidt, PhD, Karen A. Scott, MD, MPH, FACOG, Solaire Spellen, MPH, Jodi D Stookey, PhD, Martha Tesfalul, MD, Larry Rand, MD, Laura L. Jelliffe-Pawlowski, PhD, MS