Yolken, R. H.; Whitcomb, L. S.; Marien, G.; Bartlett, J. D.; Libby, J.; Ehrich, M.; Wilkins, T.; Yolken R. H.; The Johns Hopkins University School of Medicine; Whitcomb L. S.; The Johns Hopkins University School of Medicine; Marien G.; The Johns Hopkins University School of Medicine; Bartlett J. D.; The Johns Hopkins University School of Medicine; Libby J.; Virginia Polytechnic Institute and State University; Ehrich M.; Virginia Polytechnic Institute and State University; Wilkins T.; Virginia Polytechnic Institute and State University