The Karma system is currently undergoing maintenance (Monday, January 29, 2018).
The maintenance period has been extended to 8PM EST.

Karma Credits will not be available for redeeming during maintenance.

JMIR mHealth and uHealth

E-collection 'Letter to the Editor (mHealth)'

A letter to the editor must cite and critique or substantially comment on a recent paper published in JMIR mHealth. The letter will be forwarded to the authors of the cited or critiqued article or other reviewers, and original authors will get a chance to respond. While some new data in a letter are a allowed, a letter is NOT a short research report. There is no publication fee (APF).