Affiliation: | a Antiphospholipid Standardization Laboratory, Division of Rheumatology, Department of Internal Medicine, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX 77555-0883, USA b Clinical Research Division, Reprosource, Inc, 300 Trade Center, Suite 6540, Woburn, MA 01801, USA c Department of Obstetrics and Gynecology, University of Utah Health Sciences Center and Intermountain Healthcare, 30 North 1900 East, Room 2B200 SOM, Salt Lake City, UT 84132, USA |