Product Search Search Effective Health Care website Submit search Search Tip: Use double quotes around phrases to rank exact matches higher in the result list. 4 results Testing of CYP2C19 Variants and Platelet Reactivity for Guiding Antiplatelet Treatment Systematic Review Archived September 25, 2013 Serum Free Light Chain Analysis for the Diagnosis, Management, and Prognosis of Plasma Cell Dyscrasias: Future Research Needs Systematic Review Archived September 19, 2012 Testing of CYP2C19 Variants and Platelet Reactivity for Guiding Antiplatelet Treatment Research Protocol Archived November 22, 2011 Serum-Free Light Chain Analysis for the Diagnosis, Management, and Prognosis of Plasma Cell Dyscrasias Research Protocol Archived May 2, 2011