{{Cite journal| doi = 10.1093/heapol/czz068| issn = 0268-1080, 1460-2237| volume = 34| issue = 7| pages = 544–552| last1 = Zamboni| first1 = Karen| last2 = Schellenberg| first2 = Joanna| last3 = Hanson| first3 = Claudia| last4 = Betran| first4 = Ana Pilar| last5 = Dumont| first5 = Alexandre| title = Assessing scalability of an intervention: why, how and who?| journal = Health Policy and Planning| access-date = 2020-03-18| date = 2019-09-01| url = https://academic.oup.com/heapol/article/34/7/544/5542084}}