"Journal of Perinatal Medicine", 28.3 (2000): 169-242. Retrieved 26 May. 2013, from http://www.degruyter.com/view/j/jpme.2000.28.issue-3/issue-files/jpme.2000.28.issue-3.xml

Journal of Perinatal Medicine (2000), 28(3), pp. 169-242. Retrieved 26 May. 2013, from http://www.degruyter.com/view/j/jpme.2000.28.issue-3/issue-files/jpme.2000.28.issue-3.xml

Journal of Perinatal Medicine. 2000. 28(3): 169-242. Retrieved 26 May. 2013, from http://www.degruyter.com/view/j/jpme.2000.28.issue-3/issue-files/jpme.2000.28.issue-3.xml