Authors: Kathryn J Swoboda; Charles B Scott; Sandra P Reyna; Thomas W Prior; Bernard LaSalle; Susan L Sorenson; Janine Wood; Gyula Acsadi; Thomas O Crawford; John T Kissel; Kristin J Krosschell; Guy D'Anjou; Mark B Bromberg; Mary K Schroth; Gary M Chan; Bakri Elsheikh; Louise R Simard Journal: PLoS One Date: 2009-05-14 Impact factor: 3.240