Hron , G., F. Knutson, T. Thiele, K. Althaus, C. Busemann, S. Friesecke, A. Greinacher, and N. Lubenow. “Alternative Diagnosis to Heparin-Induced Thrombocytopenia in Two Critically Ill Patients Despite a Positive PF4/Heparin-Antibody Test”. Upsala Journal of Medical Sciences, vol. 118, no. 4, Oct. 2013, doi:10.3109/03009734.2013.838811.