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Selection steps of the oral corticosteroid (OCS) population (data year 2015). LABA: long-acting β2-agonist; ICS: inhaled corticosteroid; HD: high-dose. #: relative to patients in the box just above; ¶: patients with at least one ICS interval with a mean dosage above the upper threshold according to GINA [2]; +: relative to total sample.
