Apt-Downey test

McRury JM & Barry RC: A modified Apt test: a new look at an old test.. Pediatr Emerg Care 1994; 10:189-191.

Liu N, Wu AH, & Wong SS: Improved quantitative Apt test for detecting fetal hemoglobin in bloody stools of newborns. Clin Chem 1993; 39(11):2326-2329. Available from URL: http://www.clinchem.org/cgi/reprint/39/11/2326. As accessed 1/27/2005.

Crook M: Haemoglobin in stools from neonates: measurement by a modified Apt-test. Med Lab Sci 1991; 48(4):346-347.

Henry JB: Clinical Diagnosis and Management by Laboratory Methods, 20th ed. Saunders, 2001.