Azithromycin in patients admitted to hospital with COVID-19 (RECOVERY): a randomised, controlled, open-label, platform trial RECOVERY Collaborative Group Lancet (London, England) 397 (10274), 605, 2021 | 331 | 2021 |

Use of the WHO Access, Watch, and Reserve classification to define patterns of hospital antibiotic use (AWaRe): an analysis of paediatric survey data from 56 countries Y Hsia, BR Lee, A Versporten, Y Yang, J Bielicki, C Jackson, J Newland, ... The Lancet Global Health 7 (7), e861-e871, 2019 | 278 | 2019 |

Testing modules for irreducibility DF Holt, S Rees Journal of the Australian Mathematical Society 57 (1), 1-16, 1994 | 181 | 1994 |

Groups with context-free co-word problem DF Holt, S Rees, CE Röver, RM Thomas Journal of the London Mathematical Society 71 (3), 643-657, 2005 | 80 | 2005 |

The use of knuth-bendix methods to solve the wordproblem in automatic groups DBA Epstein, DF Holt, SE Rees Journal of Symbolic Computation 12 (4-5), 397-414, 1991 | 79 | 1991 |

Recognizing badly presented Z-modules G Havas, DF Holt, S Rees Linear algebra and its applications 192, 137-163, 1993 | 57 | 1993 |

Body mass index and complications following major gastrointestinal surgery: a prospective, international cohort study and meta‐analysis EuroSurg Collaborative, R Blanco‐Colino, S Lee, SK Kamarajah, P Vasko, ... Colorectal Disease 20 (8), O215-O225, 2018 | 56 | 2018 |

A graphics system for displaying finite quotients of finitely presented groups D Holt, S Rees DIMACS Series in Discrete Mathematics and Theoretical Computer Science, 113-126, 1993 | 52 | 1993 |

Groups, languages and automata DF Holt, S Rees, CE Röver Cambridge University Press, 2017 | 50 | 2017 |

Computing matrix group decompositions with respect to a normal subgroup DF Holt, CR Leedham-Green, EA O'Brien, S Rees Journal of Algebra 184 (3), 818-838, 1996 | 50 | 1996 |

Artin groups of large type are shortlex automatic with regular geodesics DF Holt, S Rees Proceedings of the London Mathematical Society 104 (3), 486-512, 2012 | 45 | 2012 |

Testing matrix groups for primitivity DF Holt, CR Leedham-Green, EA O'Brien, S Rees Journal of Algebra 184 (3), 795-817, 1996 | 40 | 1996 |

A characterisation of virtually free groups RH Gilman, S Hermiller, DF Holt, S Rees Archiv der Mathematik 89, 289-295, 2007 | 32 | 2007 |

Solving the word problem in real time DF Holt, S Rees Journal of the London Mathematical Society 63 (3), 623-639, 2001 | 31 | 2001 |

Sofic groups: graph products and graphs of groups L Ciobanu, DF Holt, S Rees Pacific J. Math 271 (1), 53-64, 2014 | 28 | 2014 |

An algorithmic approach to fundamental groups and covers of combinatorial cell complexes S Rees, LH Soicher Journal of Symbolic Computation 29 (1), 59-77, 2000 | 28 | 2000 |

An implementation of the Neumann–Praeger algorithm for the recognition of special linear groups DF Holt, S Rees Experimental Mathematics 1 (3), 237-242, 1992 | 28 | 1992 |

Quantum algorithms in group theory M Batty, SL Braunstein, AJ Duncan, S Rees arXiv preprint quant-ph/0310133, 2003 | 25 | 2003 |

Testing for isomorphism between finitely presented groups DF Holt, S Rees Groups, Combinatorics and Geometry 165, 459-475, 1992 | 23 | 1992 |

Students' participation in collaborative research should be recognised S Collaborative International Journal of Surgery 39, 234-237, 2017 | 22 | 2017 |