The study was conducted in the general practice setting,and 16 GPs were chosen to recruit the patients,using a maximum variation sampling strategy [11].These GPs recruited 32 patients with a primary diagnosisof MI by applying theoretical sampling strategy[12]. In the first phase, eight GPs chose one male andeight GPs one female patient, according to predefinedinclusion criteria [7,13]. In the second phase, a further16 patients were recruited according to the results ofiterative data analyses to explore analytically relevantdistinctions