"Guest Editorial Comment" Clinical Chemistry and Laboratory Medicine, 28.11 (2009): 813-816. Retrieved 26 May. 2013, from doi:10.1515/cclm.1990.28.11.813

Guest Editorial Comment. Clinical Chemistry and Laboratory Medicine (2009), 28(11), pp. 813-872. Retrieved 26 May. 2013, from doi:10.1515/cclm.1990.28.11.813

Guest Editorial Comment. Clinical Chemistry and Laboratory Medicine. 2009. 28(11): 813-872. Retrieved 26 May. 2013, from doi:10.1515/cclm.1990.28.11.813