By Kristina TN   Majoor GD   Vleuten CPM van der   in Education for Health

ISSN:1357-6283|18|2|194-208

Ashgate Publishing Ltd‎(2005)‎

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By Majoor G.D.   in Netherlands Journal of Zoology

ISSN:1568-542X|23|1|111-117

Brill‎(1972)‎

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