Serum DDT and DDE levels in pregnant women of chiapas, MexicoKOEPKE, Ruth; WARNER, Marcella; PETREAS, Myrto et al.Archives of environmental health. 2004, Vol 59, Num 11, pp 559-565, issn 0003-9896, 7 p.Article

Estimating the Effectiveness of Tetanus-Diphtheria-Acellular Pertussis Vaccine (Tdap) for Preventing Pertussis: Evidence of Rapidly Waning Immunity and Difference in Effectiveness by Tdap BrandKOEPKE, Ruth; EICKHOFF, Jens C; AYELE, Roman A et al.The Journal of infectious diseases. 2014, Vol 210, Num 6, pp 942-953, issn 0022-1899, 12 p.Article

Using a Bayesian Latent Class Model to Evaluate the Utility of Investigating Persons with Negative Polymerase Chain Reaction Results for PertussisTARR, Gillian A. M; EICKHOFF, Jens C; KOEPKE, Ruth et al.American journal of epidemiology. 2013, Vol 178, Num 2, pp 309-318, issn 0002-9262, 10 p.Article