%0 Journal Article %T Risk Factors for Diagnostic Delay in Achalasia %A Eckardt, V.F. %A Kohne, U. %A Junginger, T. %A Westermeier, T. %J Digestive Diseases and Sciences %V 42 %N 3 %P 580-585 %@ 0163-2116 %D 2004-09-28 %I Kluwer Academic Publishers-Plenum Publishers %~ DeepDyve