![Vaezi M.F., Sifrim D. Assessing Old and New Diagnostic Tests for Gastroesophageal Reflux Disease / Gastroenterology. 2018;154:289–301. Vaezi M.F., Sifrim D. Assessing Old and New Diagnostic Tests for Gastroesophageal Reflux Disease / Gastroenterology. 2018;154:289–301.](https://www.gastroscan.ru/literature/images05/vaezi-sifrim-fig1.jpg)
Vaezi M.F., Sifrim D. Assessing Old and New Diagnostic Tests for Gastroesophageal Reflux Disease / Gastroenterology. 2018;154:289–301.
![24 hour PH measurement | Best Gastroenterologist in Ahmedabad, India | Good Gastroenterologist in Ahmedabad | Top Gastroenterologist in Ahmedabad 24 hour PH measurement | Best Gastroenterologist in Ahmedabad, India | Good Gastroenterologist in Ahmedabad | Top Gastroenterologist in Ahmedabad](https://www.nigindia.org/assets/img/Treatment-Page-Img/24-hour-ph-measurement.jpg)
24 hour PH measurement | Best Gastroenterologist in Ahmedabad, India | Good Gastroenterologist in Ahmedabad | Top Gastroenterologist in Ahmedabad
![JCM | Free Full-Text | Evaluation of Oropharyngeal pH-Monitoring in the Assessment of Laryngopharyngeal Reflux JCM | Free Full-Text | Evaluation of Oropharyngeal pH-Monitoring in the Assessment of Laryngopharyngeal Reflux](https://www.mdpi.com/jcm/jcm-10-02409/article_deploy/html/images/jcm-10-02409-g001a.png)
JCM | Free Full-Text | Evaluation of Oropharyngeal pH-Monitoring in the Assessment of Laryngopharyngeal Reflux
![High Resolution Oesophageal Manometry and pH Monitoring | Hull University Teaching Hospitals NHS Trust High Resolution Oesophageal Manometry and pH Monitoring | Hull University Teaching Hospitals NHS Trust](https://www.hey.nhs.uk/wp/wp-content/uploads/2016/04/HEY291-2019.png)
High Resolution Oesophageal Manometry and pH Monitoring | Hull University Teaching Hospitals NHS Trust
![The value of a negative preop Restech test for postop results – Gastrointestinal function testing using the new minimally invasive laryngopharyngeal PH probe - SAGES Abstract Archives The value of a negative preop Restech test for postop results – Gastrointestinal function testing using the new minimally invasive laryngopharyngeal PH probe - SAGES Abstract Archives](http://www.submitmyabstract.com/abs/images/94104/Bildschirmfoto%202018-09-19%20um%2016_03_54.png)