Combining Persuasive System Design Principles and Behavior Change Techniques in Digital Interventions Supporting Long-term Weight Loss Maintenance: Design and Development of eCHANGE - Rikke Aune Asbjørnsen; Jøran Hjelmesæth; Mirjam Lien Smedsrød; Jobke Wentzel; Marianne Ollivier; Matthew M Clark; Julia E W C van Gemert-Pijnen; Lise Solberg Nes (JMIR Human Factors, 2022)