Illustrative quotes.

In the S1 Data, interviewee codes correspond to the participant (either ‘GP’ i.e., physician or ‘MSR’) followed by their number in the interview sequence and the date the interview was conducted. For the physician interviews, the ‘GP’ in the code is followed by the first letter of the district in which the physician’s clinic is located. For example, GPE-004 refers to a physician in the East district of Karachi, who was fourth in the interview sequence. The MSR interviews did not have a district location and are thus simply followed by their number in the sequence. (XLSX)