There are 2 studies that match your criteria.
Criteria: Study Type=Human / Provocation,Freq Range=300 kHz - 300 GHz (RF/mmW/THz),Study Subtype=Risk Perception, Mobile Phone Use Patterns

View This Study - Citation No: 4845
Title	DEVELOPMENT OF A CELL PHONE ADDICTION SCALE FOR KOREAN ADOLESCENTS
Reference	J Korean Acad Nurs, Vol. 39, Pg. 818 - 828, 2009
Author(s)	Koo H. Y.
PubMed UID	20071895
Project ID	2196
View This Study - Citation No: 5866
Title	Dealing with self-report bias in mobile Internet acceptance and usage studies.
Reference	Information & Management., Vol. 52, Pg. 287 - 294, 2015
Author(s)	de Reuver M., Bouwman H.
PubMed UID
Project ID	2445