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Low risk pragmatic trials do not always require participants’ informed consentDal-Ré, Rafael; Avendaño-Solà, Cristina; Bloechl-Daum, Brigitte; de Boer, Anthonius; Eriksson, Stefan; Fuhr, Uwe; Holm, Søren; James, Stefan K; Mentz, Robert J; Perucca, Emilio; Rosendaal, Frits R; Treweek, Shaun · BMJ · 2019