Safety of combining biologics in severe asthma: asthma-related and unrelated combinations : letter - Lommatzsch, Marek; Suhling, Hendrik; Korn, Stephanie; Bergmann, Karl-Christian; Schreiber, Jens; Bahmer, Thomas; Rabe, Klaus F.; Buhl, Roland; Virchow, Johann Christian; Milger-Kneidinger, Katrin (Allergy, 2022)