If participants decide that they would like a telephone interview, the process will be slightly different. EG will send three consent forms to each prospective participant (one for them to keep, and two for them to date/sign and send back by post) in a stamped addressed envelope. If the forms are not received within 3 weeks, EG will follow up with a phone call to the prospective participant, to clarify whether they still wish to participate. Only after she receives the two dated/signed consent forms will EG arrange a time with them for the telephone interview. She will then phone the participant from a private location that she does not share with other colleagues. She will collect sociodemographic information (which will be recorded on the Personal Information Sheet) before starting the interview (which will last at least 30 minutes.)