Items where Author is "<span class="person_name">Crutzen, Rik</span>"
Number of items: 3.
Planning for successful participant recruitment and retention in trials of behavioural interventions: Feasibility Randomised Controlled Trial of the Wrapped intervention. (2025)
Lauren Schumacher,
Rik Crutzen,
Kayleigh Kwah,
Katherine Brown,
Julia V. Bailey,
Stephen Bremner,
Louise J. Jackson
and
Katie Newby
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An Intervention to Increase Condom Use Among Users of Sexually Transmitted Infection Self-sampling Websites (Wrapped) : Protocol for a Randomized Controlled Feasibility Trial. (2023)
Katie Newby,
Kayleigh Kwah,
Lauren Schumacher,
Rik Crutzen,
Julia. V. Bailey,
Louise. L. Jackson,
Stephen Bremner
and
Katherine. E. Brown
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An intervention to increase condom use among users of chlamydia self-sampling websites (wrapped) : Intervention mapping and think-aloud study. (2019)
Katie Newby,
Rik Crutzen,
Katherine Brown,
Julia Bailey,
John Saunders,
Ala Szczepura,
Jonny Hunt,
Tim Alston,
S. Tariq Sadiq
and
Satyajit Das
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