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Figure 2: Distribution of cases according to the technical difficulty of ESS in the Terms 1, 2 and 3. E: Easy, SD: Slightly difficult, FD: Fairly difficult, D: Difficult, VD: Very difficult, ED: Extremely difficult, ESS: European Scoring System

Figure 2: Distribution of cases according to the technical difficulty of ESS in the Terms 1, 2 and 3. E: Easy, SD: Slightly difficult, FD: Fairly difficult, D: Difficult, VD: Very difficult, ED: Extremely difficult, ESS: European Scoring System