Social distancing during the COVID-19 pandemic: quantifying the practice in Michigan - a "hotspot state" early in the pandemic - using a volunteer-based online survey. - Cassidy-Bushrow AE; Baseer M; Kippen K; Levin AM; Li J; Loveless I; Poisson LM; Schultz L; Wegienka G; Zhou Y; Johnson CC (BMC public health, 2021)