Quality Indicator Development for the Approach to Ineffective Esophageal Motility: A Modified Delphi Study.

Kamal AN, Kathpalia P, Leiman DA, Bredenoord AJ, Clarke JO, Gyawali CP, Katzka DA, Lazarescu A, Pandolfino JE, Penagini R, Roman S, Savarino E, Vela MF, Otaki F