BibTex format
@article{El-Osta:2021:10.1136/bmjopen-2020-043397,
author = {El-Osta, A and Alaa, A and Webber, I and Riboli-Sasco, E and Emmanouil, B and Millar, HL and Vidal, Hall C and Majeed, A},
doi = {10.1136/bmjopen-2020-043397},
journal = {BMJ Open},
pages = {1--11},
title = {How is the COVID-19 lockdown impacting the mental health of parents of school-age children in the United Kingdom? A cross-sectional online survey},
url = {http://dx.doi.org/10.1136/bmjopen-2020-043397},
volume = {11},
year = {2021}
}