For citations:

Michailova E.I. A GUAIAC PROBE AND AN IMMUNE MARKER TEST FOR HIDDEN BLOOD IN FAECES IN AN UNINVASIVE CANCER DIAGNOSTIC OF A GASTROINTESTINAL TRACT. Health and Ecology Issues. 2007;(3):128-134. (In Russ.) https://doi.org/10.51523/2708-6011.2007-4-3-22