To enhance saturation, efforts were made to include a large variety of people with different backgrounds, to conduct a maximized number of interviews during the 8 wk study period in each province and to cover as many themes and subthemes from the interview guide as possible in each interview.24 All data generated, including notes, audio files, digital transcripts and the interviewer checklist, were coded with an alphanumeric ID to preserve the confidentiality of participants. Paper files were scanned electronically and then shredded. All electronic data were encrypted and password-protected, and access was limited to the study staff conducting analyses.