By van Bergen Jan EAM   Kerssens Jan J   Schellevis Francois G   Sandfort Theo G   Coenen Ton J   Bindels Patrick J   in British Journal of General Practice

ISSN:1478-5242|56|523|104-109

Royal College of General Practitioners‎(2006)‎

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By de Graaf Hanneke   Sandfort Theo G. M.   in Archives of Sexual Behavior

ISSN:0004-0002|33|4|395-403

Springer Publishing Company ‎(2004)‎

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By Sandfort Theo G. M.   Ehrhardt Anke A.   in Archives of Sexual Behavior

ISSN:0004-0002|33|3|181-187

Springer Publishing Company ‎(2004)‎

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By Sandfort Theo G.M.   Reddy Vasu   in Culture, Health & Sexuality

ISSN:1464-5351|15|1|1-6

Routledge Ltd‎(2013)‎

Access to resources Favorite 3.7115784

By de Graaf Ron   Sandfort Theo G.   ten Have Margreet   in Archives of Sexual Behavior

ISSN:0004-0002|35|3|253-262

Springer Publishing Company ‎(2006)‎

Access to resources Favorite 3.0929818

By Dodge Brian   Sandfort Theo G. M.   Yarber William L.   de Wit John   in American Journal of Health Behavior

ISSN:1945-7359|29|2|172-182

PNG Publications‎(2005)‎

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