Research Article
High Seroprevalence of Autoantibodies Typical of Autoimmune Liver Disease in Eastern Ethiopia: Is Chewing of Khat (Catha edulis) a Triggering Factor?
Figure 1
The visual analogue scale used to quantify the use of khat in grams. (1) 100 grams; (2) 200 grams; (3) 400 grams; (4) 600 grams; (5) 800 grams; (6) 1000 grams.