Figure 2From: Targeting under-diagnosis in hereditary hemorrhagic telangiectasia: a model approach for rare diseases?Variation in D-prevalence across all cities in Ontario, Canada. Each circle represents a given D-prevalence from one or more Ontario cities. There were 59 cities with no reported cases of HHT. The D-prevalence of HHT varied significantly across included regions and ranged from no cases to 9.4 per 5000 adults.Back to article page