biostudies-literatureUnknown201(2)Dempsey TMAmerican journal of respiratory and critical care medicine257-258https://www.ebi.ac.uk/biostudies/studies/S-EPMC6961735biostudies-literatureReply to Callahan: Identifying "Real" Patients in the Real World.PMC6961735Dempsey TMLimper AHfalseReply to Callahan: Identifying "Real" Patients in the Real World.2020-01-01T00:00:00Z2020 Jan2024-11-07T09:19:21.145Z2022-02-09T15:01:16.635ZS-EPMC69617353141939310.1164/rccm.201908-1538LE