The Karma system is currently undergoing maintenance (Monday, January 29, 2018).
The maintenance period has been extended to 8PM EST.
Karma Credits will not be available for redeeming during maintenance.
Usability Evaluation of an Online, Tailored Self-Management Intervention for Chronic Obstructive Pulmonary Disease Patients Incorporating Behavior Change Techniques
Viola Voncken-Brewster, Albine Moser, Trudy van der Weijden, Zsolt Nagykaldi, Hein de Vries, Huibert Tange
JMIR Res Protoc 2013 (Jan 16); 2(1):e3