1. Kratz A, Ferraro M, Sluss PM,
Lewandrowski KB. Laboratory reference values. N Engl J Med.
2004;351(15):1548-15632. PMID:15470219
2. Abbassi-Ghanavati M, Greer LG, Cunningham FG. Pregnancy and laboratory
studies: a reference table for clinicians. Obstet Gynecol. 2009
Dec;114(6):1326-31. PMID:19935037