John M. Castor

Learn More
Administrative procedure code data can estimate colonoscopy utilization; however, determining colonoscopy indication is more difficult as procedure codes do not inherently reflect the purpose (screening, surveillance, diagnosis) of the colonoscopy. To improve the reported sensitivity (70%) and specificity (72%) of a published algorithm for identifying(More)
BACKGROUND Lung transplantation has become an effective therapeutic option for selected patients with end stage lung disease. Long-term survival is limited by chronic rejection manifest as bronchiolitis obliterans syndrome (BOS). The aspiration of gastric contents has been implicated as a causative or additive factor leading to BOS. Gastroesophageal reflux(More)
  • 1