Assertion: comfrey's use | /r/HasProperty | skin ulcers
Facets:
Source sentences:
text: Other uses not proven with research have included skin wounds, skin ulcers, cough, sore throat, gum disease, joint pain, diarrhea, and other conditions.
text: Other uses not proven with research have included skin wounds, skin ulcers, cough, sore throat, gum disease, joint pain, diarrhea, and other conditions.