EntityQ941607· pop 11· linked from 153 articlesSchilling testSign in to savemedical test for patients with vitamin B12 deficiencyConnectionsupper gastrointestinal seriesEntityhuman digestive systemEntitygastrointestinal tractEntityliverEntitystomachEntitysmall intestineEntitypancreasEntitylarge intestineEntityesophagusEntitydigital object identifierEntitygallbladderEntitybileEntityherniaEntityrectumEntityceliac diseaseEntitysalivary glandEntityvitamin B12EntityQ180686EntityendoscopyEntityexcretionEntityCategoriesClinical chemistryDiagnostic gastroenterologyNuclear medicine proceduresObsolete medical proceduresVitamin B12