MODEL RELEASED. Hydrogen peroxide solution is applied to faecal samples on a guaiac-impregnated filter paper in a test kit submitted in a national screening programme. A resulting transient blue colour would indicate the possible presence of occult (hidden) blood with a need for further investigations for possible bowel cancer or polyps | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / King-Holmes, James |
Taille de l’image : | 5140 px × 3420 px |
Model Release : | Disponible |
Property Release : | Non requis |
Restrictions : | - |