TY - JOUR A1 - Markel, H. A1 - Lipman, H.B. A1 - Navarro, J.A. A1 - Sloan, A. A1 - Michalsen, J.R. A1 - Stern, A.M. A1 - Cetron, M.S. T1 - Nonpharmaceutical interventions implemented by US cities during the 1918–1919 influenza pandemic Y1 - 2007 DO - 10.1001/jama.298.6.644 VL - 298 IS - 6 ER -