The invention provides a breath testing device which visually indicates the presence of ammonia in a patient's breath, in particular ammonia from helicobacter pylori urease infection. The breath testing device comprises a visual indicating agent which changes color in response to ammonia odors, such...http://www.google.es/patents/US7582485?utm_source=gb-gplus-sharePatente US7582485 - Method and device for detecting ammonia odors and helicobacter pylori urease infection
Method and device for detecting ammonia odors and helicobacter pylori urease ...
