Urine pregnancy test

Cole LA, Khanlian SA, Sutton JM, et al: Accuracy of home pregnancy tests at the time of missed menses. Am J Obstet Gynecol 2004; 190(1):100-105.

Butler SA, Khanlian SA, & Cole LA: Detection of early pregnancy forms of human chorionic gonadotropin by home pregnancy test devices. Clin Chem 2001; 47(12):2131-2136.

Wilcox AJ, Baird DD, Dunson D, et al: Natural limits of pregnancy testing in relation to the expected menstrual period. JAMA 2001; 286(14):1759-1761.

Tietz NW (Ed): Clinical Guide to Laboratory Tests, 3rd ed. W. B. Saunders, Philadelphia, PA, 1995.