@misc{7750,
  author = {J. Walker and D. Grint and H. Strongman and R. Eggo and M. Peppa and C. Minassian and K. Mansfield and C. Rentsch and I. Douglas and R. Mathur and A. Wong and J. Quint and N. Andrews and J. Bernal and J. Scott and M. Ramsay and L. Smeeth and H. McDonald},
  title = {UK prevalence of underlying conditions which increase the risk of severe COVID-19 disease: a point prevalence study using electronic health records},
  year = {2021},
  journal = {BMC Public Health},
  volume = {21},
  number = {1},
  pages = {484},
  issn = {1471-2458},
  doi = {10.1186/s12889-021-10427-2},
}