A review of evidence for pneumococcal vaccination in adults at increased risk of pneumococcal disease: risk group definitions and optimization of vaccination coverage in the United Kingdom. - Campling J; Vyse A; Liu HH; Wright H; Slack M; Reinert RR; Drayson M; Richter A; Singh D; Barlow G; Kassianos G; Ellsbury G (Expert review of vaccines, 2023)