Table 1. Semi-structured interviews: location and interviewee characteristics.

Interview #	Site	Role of interviewee(s)	STP area	Date of interview
1	General practice	Practice nurse	North east London	15/09/2020
2	General practice	Business manager	North west London	17/09/2020
3	General practice	Practice manager	South west London	22/09/2020
4	General practice	Practice nurse	North central London	22/09/2020
5	General practice	GP	North central London	01/10/2020
6	CCG	i. GP collaboration ii. CCG flu team member	South west London	07/10/2020
7	General practice	Practice nurse	North London	10/11/2020
8	General practice	Practice nurse	South east London	25/08/2020
9	General practice	Practice nurse	North east London	07/09/2020
10	General practice	Deputy practice manager	North east London	11/09/2020
11	General practice	Assistant practice manager	North east London	14/09/2020
12	General practice	Business manager	North west London	22/09/2020
13	General practice	Practice manager	North central London	24/09/2020
14	CCG	Training	South east London	06/10/2020

CCG = clinical commissioning group. STP = sustainability and transformation partnership (an area where local NHS organisations and councils have drawn up shared proposals to improve health and care in the area they serve).²²