The Temporal Relationship between the Coronavirus Disease 2019 (COVID-19) Pandemic and Preterm Birth

William A. Grobman, Grecio J. Sandoval, Torri D. Metz, Tracy A. Manuck, Rebecca G. Clifton, Brenna L. Hughes, George R. Saade, Monica Longo, Amber Sowles, Kelly Clark, Hyagriv N. Simhan, Dwight J. Rouse, Hector Mendez-Figueroa, Cynthia Gyamfi-Bannerman, Jennifer L. Bailit, Maged M. Costantine, Harish M. Sehdev, Alan T.N. Tita, George A. Macones