A structured review of reasons for ecstasy use and related behaviours: pointers for future research

by Kok Gerjo, Peters Gjalt-Jorn
Published 2009-07-01

Predictors of healthcare professionals' intention and behaviour to encourage physical activity in patients with cardiovascular risk factors

by Kok Gerjo, Sassen Barbara, Vanhees Luc
Published 2011-04-01

Social-cognitive correlates of risky adolescent cycling behavior

by Ruiter Robert AC, Feenstra Hans, Kok Gerjo
Published 2010-07-01

Careers in ecstasy use: do ecstasy users cease of their own accord? Implications for intervention development

by Schaalma Herman P, Kok Gerjo, Peters Gjalt-Jorn
Published 2008-10-01

Supporting Health Care Professionals to Improve the Processes of Shared Decision Making and Self-Management in a Web-Based Intervention: Randomized Controlled Trial

by Sassen, Barbara, Kok, Gerjo, Schepers, Jan, Vanhees, Luc
Published 2014-10-01

Methods for environmental change; an exploratory study

by Kok Gerjo, Gottlieb Nell H, Panne Robert, Smerecnik Chris
Published 2012-11-01

Cardiovascular risk profile: Cross-sectional analysis of motivational determinants, physical fitness and physical activity

by Kiers Henri, Schaalma Herman, Kok Gerjo, Sassen Barbara, Vanhees Luc
Published 2010-10-01

Constructing a Theory- and Evidence-Based Treatment Rationale for Complex eHealth Interventions: Development of an Online Alcohol Intervention Using an Intervention Mapping Approac...

by Brendryen, Håvar, Johansen, Ayna, Nesvåg, Sverre, Kok, Gerjo, Duckert, Fanny
Published 2013-01-01

Monitoring Dietary Intake and Physical Activity Electronically: Feasibility, Usability, and Ecological Validity of a Mobile-Based Ecological Momentary Assessment Tool

by Spook, Jorinde Eline, Paulussen, Theo, Kok, Gerjo, Van Empelen, Pepijn
Published 2013-09-01

Correlates of STI testing among vocational school students in the Netherlands

by Mackenbach Johan P, Kok Gerjo, Wolfers Mireille EG, de Zwart Onno
Published 2010-11-01

Promoting STI testing among senior vocational students in Rotterdam, the Netherlands: effects of a cluster randomized study

by Wolfers Mireille, Kok Gerjo, Looman Caspar, de Zwart Onno, Mackenbach Johan
Published 2011-12-01

A Web-Based Intervention for Health Professionals and Patients to Decrease Cardiovascular Risk Attributable to Physical Inactivity: Development Process

by Sassen, Barbara, Kok, Gerjo, Mesters, Ilse, Crutzen, Rik, Cremers, Anita, Vanhees, Luc
Published 2012-12-01

Behavioural intentions in response to an influenza pandemic

by Schaalma Herman, Meertens Ree, Gelissen Roger, Jonkers Ruud, Kok Gerjo, de Zwart Onno
Published 2010-03-01

Public health: disconnections between policy, practice and research

by Kok Gerjo, van Oers Hans AM, Jansen Maria WJ, de Vries Nanne K
Published 2010-12-01

Reasons for compliance or noncompliance with advice to test for hepatitis C via an internet-mediated blood screening service: a qualitative study

by Prins Maria, Urbanus Anouk T, Heijman Titia, Zuure Freke R, Kok Gerjo, Davidovich Udi
Published 2011-05-01

Effective elements of school health promotion across behavioral domains: a systematic review of reviews

by Peters Louk WH, Kok Gerjo, Ten Dam Geert TM, Buijs Goof J, Paulussen Theo GWM
Published 2009-06-01

The Active <it>plus </it>protocol: systematic development of two theory- and evidence-based tailored physical activity interventions for the over-fifties

by de Vries Hein, Kok Gerjo, van Stralen Maartje M, Mudde Aart N, Bolman Catherine, Lechner Lilian
Published 2008-12-01

Evaluation of a school-based HIV prevention intervention among Yemeni adolescents

by Crutzen Rik, Al-Sakkaf Khaled, Basaleem Huda, Al-Iryani Buthaina, Kok Gerjo, van den Borne Bart
Published 2011-05-01

Correlates of delayed sexual intercourse and condom use among adolescents in Uganda: a cross-sectional study

by Rijsdijk Liesbeth E, Bos Arjan ER, Lie Rico, Ruiter Robert AC, Leerlooijer Joanne N, Kok Gerjo
Published 2012-09-01

The Influence of Two Different Invitation Letters on Chlamydia Testing Participation: Randomized Controlled Trial

by ten Hoor, Gill, Hoebe, Christian JPA, van Bergen, Jan EAM, Brouwers, Elfi EHG, Ruiter, Robert AC, Kok, Gerjo
Published 2014-01-01