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. 2019 Mar 21;14(3):e0214329. doi: 10.1371/journal.pone.0214329

Fig 2. Frequency of analgesics used, according to the Anatomical Therapeutic Chemical (ATC) classification system, alone or in combination, by individuals who reported that they were using analgesics (n = 10,214).

Fig 2

PNAUM, 2014*. * Percentages adjusted according to sample weights and according to post-stratification (according to age and gender).