[1] Univ Washington, Dept Lab Med, Seattle, WA 98195 USA
[2] Univ Utah, Dept Pathol, Pathol Clin, Salt Lake City, UT USA
[3] ARUP Labs, Salt Lake City, UT USA
[4] Seattle Childrens Hosp, Chem & Reference Lab Serv, Seattle, WA USA
[5] Univ Melbourne, Clin Support Syst, Son Healthcare, Melbourne, Vic, Australia
[6] Aberdeen Royal Infirm, NHS Grampian, Lab Med, Aberdeen, Scotland
[7] Univ Texas Med Branch, Dept Pathol, Galveston, TX 77555 USA