“…They used NPT in ‘identifying and describing the components and sub-components of the intervention’ to understand ‘the nuances associated with collective implementation’. The next most numerous group of studies focused on the implementation of diagnostic and therapeutic interventions ( n = 28, 25.9% [ 19 , 24 – 26 , 28 – 31 , 36 , 37 , 47 , 48 , 55 – 57 , 67 , 69 , 78 , 80 , 90 , 95 , 97 , 98 , 103 , 104 , 111 , 117 , 123 , 126 , 137 , 142 , 143 ]). For example, in the USA, Hoberg et al [ 98 ] examined the implementation of a new form of group therapy for people with mental health problems, while Leon et al [ 48 ] showed how provider initiated testing and counselling for HIV was successfully normalised in a South African setting.…”