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BDDCS distribution plots for antiinfectives for systemic use drugs: (A) ATC level 2 and (B) ATC level 3; nervous system drugs: (C) ATC level 2 and (D) ATC level 3; musculo-skeletal system drugs: (E) ATC level 2 and (F) ATC level 3. On each plot, the number of drugs is reported. Class 1, 2, 3 and 4 are respectively depicted in black, red, blue and green.
