Funding for this research was provided by:
EuroQol Research Foundation
Universiti Sains Malaysia (Research University Grant (1001/PFARMASI/811287).)
Text and Data Mining valid from 2018-12-11
First Online: 11 December 2018
Compliance with Ethical Standards
: Nan Luo and Kim Rand-Hendriksen are members of the EuroQol Research Foundation. Asrul Akmal Shafie, Nan Luo, and Kim Rand-Hendriksen have received grants from EuroQol Research Foundation. There is no other conflict of interest.
: The study received ethical approval from the Malaysia Medical Research & Ethics Committee (ID NMRR-13-1377-18574) and was conducted in accordance with the Declaration of Helsinki.
: Informed consent was obtained from all individual participants included in the study.