
Links:
[1] http://www.childtrends.org/Files//Child_Trends-2009_11_05_RB_TeenRelation.pdf
[2] http://www.nsvrc.org/publications/taxonomy/term/59
[3] http://www.nsvrc.org/publications/taxonomy/term/60
[4] http://www.nsvrc.org/publications/taxonomy/term/27
[5] http://www.nsvrc.org/publications/taxonomy/term/28
[6] http://www.nsvrc.org/publications/articles
[7] http://www.nsvrc.org/publications/research-briefs