Jack

http://library.cqpress.com/cqresearcher/document.php?id=cqresrre2007061500&type=hitlist&num=1

http://library.cqpress.com/cqresearcher/document.php?id=cqresrre1995111700&type=hitlist&num=8

http://healthland.time.com/2011/04/12/study-are-music-loving-teens-more-likely-to-be-depressed/