PT - JOURNAL ARTICLE AU - Marion Wilkens AU - Michael Bartlett AU - Frank Willersinn AU - Karen O'Hara AU - Jeanette Boyd AU - Jessica Denning TI - The patient perspective of alpha-1 antitrypsin deficiency: disease burden and unmet needs AID - 10.1183/20734735.0340-2020 DP - 2021 Mar 01 TA - Breathe PG - 200340 VI - 17 IP - 1 4099 - http://breathe.ersjournals.com/content/17/1/200340.short 4100 - http://breathe.ersjournals.com/content/17/1/200340.full SO - Breathe2021 Mar 01; 17