http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4492294/ | 07/24/2015 | | Item is within a limited-access website | |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC449229[...] | 07/24/2015 | PDF reader | Item is within a limited-access website | |
http://journals.fcla.edu/jon/article/view/84947/81944 | 08/17/2018 | PDF Reader | | |