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Use and Effect of Web-Based Embodied Conversational Agents for Improving Eating Behavior and Decreasing Loneliness Among Community-Dwelling Older Adults: Protocol for a Randomized Controlled Trial

Lean L Kramer, Bob C Mulder, Lex van Velsen, Emely de Vet

JMIR Res Protoc 2021;10(1):e22186

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Developing Embodied Conversational Agents for Coaching People in a Healthy Lifestyle: Scoping Review

Lean L Kramer, Silke ter Stal, Bob C Mulder, Emely de Vet, Lex van Velsen

J Med Internet Res 2020;22(2):e14058

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Using Feedback to Promote Physical Activity: The Role of the Feedback Sign

Jan-Niklas Kramer, Tobias Kowatsch

J Med Internet Res 2017;19(6):e192

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Leveraging Interdisciplinary Teams to Develop and Implement Secure Websites for Behavioral Research: Applied Tutorial

Christie L Martin, Eydie N Kramer-Kostecka, Jennifer A Linde, Sarah Friend, Vanessa R Zuroski, Jayne A Fulkerson

J Med Internet Res 2020;22(9):e19217

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Use of a Google Map Tool Embedded in an Internet Survey Instrument: Is it a Valid and Reliable Alternative to Geocoded Address Data?

Sharoda Dasgupta, Adam S Vaughan, Michael R Kramer, Travis H Sanchez, Patrick S Sullivan

JMIR Res Protoc 2014;3(2):e24

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Effectiveness of a Web-Based Solution-Focused Brief Chat Treatment for Depressed Adolescents and Young Adults: Randomized Controlled Trial

Jeannet Kramer, Barbara Conijn, Pien Oijevaar, Heleen Riper

J Med Internet Res 2014;16(5):e141

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Patients With Implantable Cardioverter Defibrillators on Social Media Report More Shock Anxiety Than Clinic Patients: Results From an Online Survey

Linda Kramer Freeman, Keith Richards, Jamie B Conti, Samuel F Sears

JMIR Cardio 2017;1(2):e6

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Using a Geolocation Social Networking Application to Calculate the Population Density of Sex-Seeking Gay Men for Research and Prevention Services

Kevin P Delaney, Michael R Kramer, Lance A Waller, W Dana Flanders, Patrick S Sullivan

J Med Internet Res 2014;16(11):e249

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Effectiveness of an Online Group Course for Depression in Adolescents and Young Adults: A Randomized Trial

Rianne van der Zanden, Jeannet Kramer, Rob Gerrits, Pim Cuijpers

J Med Internet Res 2012;14(3):e86

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The Effect of Commuting Patterns on HIV Care Attendance Among Men Who Have Sex With Men (MSM) in Atlanta, Georgia

Sharoda Dasgupta, Michael R Kramer, Eli S Rosenberg, Travis H Sanchez, Landon Reed, Patrick S Sullivan

JMIR Public Health Surveill 2015;1(2):e10

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