laboratory tests: abnormal level of nonmedicinal substances in specimens from digestive organs and abdominal cavity
laboratory tests: abnormal level of nonmedicinal substances in specimens from digestive organs and abdominal cavity
laboratory tests: abnormal level of nonmedicinal substances in specimens from digestive organs and abdominal cavity (lab test)
laboratory tests: abnormal level of nonmedicinal substances in specimens from digestive organs and abdominal cavity (lab test)