Informing Patients With Esophagogastric Cancer About Treatment Outcomes by Using a Web-Based Tool and Training: Development and Evaluation Study

Loïs F van de Water   ^{1, 2 *} , MSc ;   Héctor G van den Boorn   ^{1 *} , MSc ;   Florian Hoxha   ¹ , BSc ;   Inge Henselmans   ² , PhD ;   Mart M Calff   ² , PhD ;   Mirjam A G Sprangers   ² , PhD ;   Ameen Abu-Hanna   ³ , PhD ;   Ellen M A Smets   ² , PhD ;   Hanneke W M van Laarhoven   ¹ , MD, PhD

¹ Department of Medical Oncology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands

² Department of Medical Psychology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands

³ Department of Medical Informatics, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands

*these authors contributed equally