[1]Bardsley-Anderson.E.Blood in dog poop: Everything you need to know[EB/OL].vets-now.com,Update:August 27,2021
[2]Fernandez.C,DVM,DACVECC.Why Is My Dog Pooping Blood?[EB/OL].petmd.com,Update:Nov 03,2020
[3]Burke.A.What to Do If You Find Blood in Your Dog’s Stool[EB/OL]. akc.org,Update:Sep 06, 2018
[4]Nair.V,VMD.Blood In Stool:What It Means For Your Dog[EB/OL].veterinaryemergencygroup.com