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The Long-Term Effects of a Peer-Led Sex Education Programme (RIPPLE): A Cluster Randomised Trial in Schools in England
Stephenson J,
Strange V,
Allen E,
Copas A,
Johnson A,
et al.
(2008)
The Long-Term Effects of a Peer-Led Sex Education Programme (RIPPLE): A Cluster Randomised Trial in Schools in England.
PLOS Medicine 5(11): e224.
https://doi.org/10.1371/journal.pmed.0050224