BibTex format
@article{Belt:2022:10.1136/bmjopen-2022-061361,
author = {Belt, RV and Rahimi, K and Cai, S},
doi = {10.1136/bmjopen-2022-061361},
journal = {BMJ OPEN},
title = {Researching the hard-to-reach: a scoping review protocol of digital health research in hidden, marginal and excluded populations},
url = {http://dx.doi.org/10.1136/bmjopen-2022-061361},
volume = {12},
year = {2022}
}