"Journal of Pediatric Endocrinology and Metabolism", 12.6 (1999): 801-920. Retrieved 20 Jun. 2013, from http://www.degruyter.com/view/j/jpem.1999.12.6/issue-files/jpem.1999.12.6.xml

Journal of Pediatric Endocrinology and Metabolism (1999), 12(6), pp. 801-920. Retrieved 20 Jun. 2013, from http://www.degruyter.com/view/j/jpem.1999.12.6/issue-files/jpem.1999.12.6.xml

Journal of Pediatric Endocrinology and Metabolism. 1999. 12(6): 801-920. Retrieved 20 Jun. 2013, from http://www.degruyter.com/view/j/jpem.1999.12.6/issue-files/jpem.1999.12.6.xml