PT - JOURNAL ARTICLE AU - Richard Casaburi TI - Whither pulmonary rehabilitation? Will alternative modes help or hurt? AID - 10.1183/13993003.01678-2018 DP - 2018 Oct 01 TA - European Respiratory Journal PG - 1801678 VI - 52 IP - 4 4099 - http://erj.ersjournals.com/content/52/4/1801678.short 4100 - http://erj.ersjournals.com/content/52/4/1801678.full SO - Eur Respir J2018 Oct 01; 52