Physician perspectives on self-administration of i. v. α1-antitrypsin Physician perspectives on self-administration of i.v. α1-antitrypsin. a) The ideal candidate for self-administration; b) the number of training sessions required for a patient to self-administer independently. Physician perspectives on self-administration of i.v. α1-antitrypsin. a) The ideal candidate for self-administration; b) the number of training sessions required for a patient to self-administer independently. Data are presented as percentage of respondents. Ildikó Horváth et al. ERJ Open Res 2019;5:00171-2018 ©2019 by European Respiratory Society