where did the bristol stool chart come from
England
-1
Section::::History.

Bristol stool scale
3407240
Dr. Stephen Lewis
-1
Section::::History.

Bristol stool scale
3407240
Dr. Ken Heaton
-1
Section::::History.

Bristol stool scale
3407240
Scandinavian Journal of Gastroenterology
-1
Section::::History.

Bristol stool scale
3407240
15155288759156064624
NONE
Section::::History.

Bristol stool scale
3407240