A different method of breath sample Evaluation utilizes substrates such as xylose or glycocholic acid labeled with 13C and 14C isotopes followed by mass spectrographic or scintillation counting of breath samples for isotopic CO2. Sigmoidoscopies - are techniques that evaluate endoscopic ultrasounds to examine the upper and lower GI tract, https://news71638.amoblog.com/how-much-you-need-to-expect-you-ll-pay-for-a-good-private-gastroscopy-42152024