Alexander NJ White

Let the sun shine in: effects of ultraviolet radiation on invasive pneumococcal disease risk in Philadelphia, Pennsylvania

Caroline C. Johnson, D. Fisman, V. Ng, 2009, BMC infectious diseases.

Environmental Determinants of Campylobacteriosis Risk in Philadelphia from 1994 to 2007

Caroline C. Johnson, D. Fisman, V. Ng, 2009, EcoHealth.

Let the sun shine in: effects of ultraviolet radiation on invasive pneumococcal disease risk in Philadelphia, Pennsylvania

V. Ng, L. Kinlin, David N. Fisman, 2009, BMC infectious diseases.