The string test, which is also called the Entero-test, is a test used to find parasites in the upper part of your gastrointestinal tract. To perform the test, you swallow a string. When the string is ...

Hundreds of people with persistent heartburn or acid reflux will be offered a “sponge on a string” test in high-street pharmacies for the first time. NHS England is piloting a new way of preventing ...