Published on in Vol 9, No 7 (2021): July
This is a member publication of Charite - Universitaetsmedizin Berlin, Medizinische Bibliothek, Germany
![Determining the Evolution of Headache Among Regular Users of a Daily Electronic Diary via a Smartphone App: Observational Study Determining the Evolution of Headache Among Regular Users of a Daily Electronic Diary via a Smartphone App: Observational Study](https://asset.jmir.pub/assets/9c7519443995fcb9bc7ef96c49f6e270.png 480w,https://asset.jmir.pub/assets/9c7519443995fcb9bc7ef96c49f6e270.png 960w,https://asset.jmir.pub/assets/9c7519443995fcb9bc7ef96c49f6e270.png 1920w,https://asset.jmir.pub/assets/9c7519443995fcb9bc7ef96c49f6e270.png 2500w)
1 Department of Neurology, Charité – Universitätsmedizin Berlin, Berlin, Germany
2 Newsenselab GmbH, Berlin, Germany
3 Institute of Public Health, Charité – Universitätsmedizin Berlin, Berlin, Germany