Erratum: Text messaging versus email messaging to support patients with major depressive disorder: Protocol for a randomized hybrid type ii effectiveness-implementation trial (JMIR Research Protocols (2021) 10:11 (e29495) DOI: 10.2196/29495)

In "Text Messaging Versus Email Messaging to Support Patients With Major Depressive Disorder: Protocol for a Randomized Hybrid Type II Effectiveness-Implementation Trial" (JMIR Res Protoc 2021;10(10):e29495) the authors noted two errors. 1. In the originally published paper, author affiliations 1 and 2 were numbered incorrectly. The numbering of these affiliations has been switched in the corrected paper. 2. The equal contribution symbol '*' for author Felix Osiogo has been removed. The complete list of authorship and affiliations was originally published as follows: Medard Kofi Adu1*, BSc, MSc; Reham Shalaby1*, MD; Ejemai Eboreime1, MD, PhD; Adegboyega Sapara1, PhD, FRCPC; Nnamdi Nkire1, MD, MBBS, DHSM, DCP, FRAMI; Rajan Chawla1, MBBS, CCT, MSC, MRCPsych; Chidi Chima1, MBBS, MPH, PhD; Michael Achor1, MD, MSC, FRCPC; Felix Osiogo1*, FRCPC, FWACS, CCT-UK, MBBS; Pierre Chue1, MD, DABPN, MRCPsych, FRCPC; Andrew J Greenshaw1, PhD, FRSA; Vincent Israel Agyapong1,2, MD, PhD, FRCPC, FRCPsych 1Department of Psychiatry, Faculty of Medicine, Dalhousie University, Halifax, NS, Canada 2Department of Psychiatry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada *these authors contributed equally This has been corrected to the following: Medard Kofi Adu1*, BSc, MSc; Reham Shalaby1*, MD; Ejemai Eboreime1, MD, PhD; Adegboyega Sapara1, PhD, FRCPC; Nnamdi Nkire1, MD, MBBS, DHSM, DCP, FRAMI; Rajan Chawla1, MBBS, CCT, MSC, MRCPsych; Chidi Chima1, MBBS, MPH, PhD; Michael Achor1, MD, MSC, FRCPC; Felix Osiogo1, FRCPC, FWACS, CCT-UK, MBBS; Pierre Chue1, MD, DABPN, MRCPsych, FRCPC; Andrew J Greenshaw1, PhD, FRSA; Vincent Israel Agyapong1,2, MD, PhD, FRCPC, FRCPsych 1Department of Psychiatry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada 2Department of Psychiatry, Faculty of Medicine, Dalhousie University, Halifax, NS, Canada *these authors contributed equally.