1. Gastroesophageal Reflux Symptoms and Comorbid Asthma and Posttraumatic Stress Disorder Following the 9/11 Terrorist Attacks on World Trade Center in New York City Li, Jiehui; Brackbill, Robert M.; Stellman, Steven D.; Farfel, Mark R.; Miller-Archie, Sara A.; Friedman, Stephen; Walker, Deborah J.; Thorpe, Lorna E.; Cone, James 2011 Articles Epidemiology
2. Short-term and medium-term health effects of 9/11 Perlman, Sharon E.; Friedman, Stephen; Galea, Sandro; Nair, Hemanth P.; Erős-Sarnyai, Monika; Stellman, Steven D.; Hon, Jeffrey; Greene, Carolyn M. 2011 Articles Mental healthMedicine, IndustrialEpidemiology
3. Asthma and posttraumatic stress symptoms 5 to 6 years following exposure to the World Trade Center terrorist attack Farfel, Mark R.; Friedman, Stephen; Perlman, Sharon E.; Stellman, Steven D.; Walker, Deborah J.; Wu, David; Yu, Shengchao; Thorpe, Lorna E.; Brackbill, Robert M.; Ekenga, Christine C.; DiGrande, Laura; Hadler, James L. 2009 Articles EpidemiologyPublic health