. 2021 Feb 19;7(2):e24341. doi: 10.2196/24341
©Simon de Lusignan, Jamie Lopez Bernal, Rachel Byford, Gayatri Amirthalingam, Filipa Ferreira, Oluwafunmi Akinyemi, Nick Andrews, Helen Campbell, Gavin Dabrera, Alexandra Deeks, Alex J Elliot, Else Krajenbrink, Harshana Liyanage, Dylan McGagh, Cecilia Okusi, Vaishnavi Parimalanathan, Mary Ramsay, Gillian Smith, Manasa Tripathy, John Williams, William Victor, Maria Zambon, Gary Howsam, Brian David Nicholson, Victoria Tzortziou Brown, Christopher C Butler, Mark Joy, FD Richard Hobbs. Originally published in JMIR Public Health and Surveillance (http://publichealth.jmir.org), 19.02.2021.
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