"Clinical Chemistry and Laboratory Medicine", 25.4 (1987): 197-292. Retrieved 25 May. 2013, from http://www.degruyter.com/view/j/cclm.1987.25.issue-4/issue-files/cclm.1987.25.issue-4.xml

Clinical Chemistry and Laboratory Medicine (1987), 25(4), pp. 197-292. Retrieved 25 May. 2013, from http://www.degruyter.com/view/j/cclm.1987.25.issue-4/issue-files/cclm.1987.25.issue-4.xml

Clinical Chemistry and Laboratory Medicine. 1987. 25(4): 197-292. Retrieved 25 May. 2013, from http://www.degruyter.com/view/j/cclm.1987.25.issue-4/issue-files/cclm.1987.25.issue-4.xml