For other diagnostic assessments That could be of worth in evaluating sufferers with diarrhea the following are available:Du h?c theo di?n th?c s?, ti?n s?: theo quy ??nh Hello?n hành, vi?c h?c th?c s?, ti?n s? có th? ???c th?c hi?n ? n??c ngoài. Nh?ng ng??i sang n??c ngoài h?c theo di?n này th??ng ???c g?i là du h?c th?c s?, ti?n s?.Giardia: