Box 1.

Electronic search strategy.

PubMed, May 2020, Results: 43

(((“(Non communicable Diseases/classification”[Mesh] OR “Non communicable Diseases/drug therapy”[Mesh] OR “Non communicable Diseases/organization and administration”[Mesh] OR “Non communicable Diseases/prevention and control”[Mesh] OR “Non communicable Diseases/therapy”[Mesh]))) OR “NCDs/diagnostic investigations”) OR “NCDs/basic equipment’s”) OR “NCDs/Essential medicines”) OR “NCDs” OR “Non communicable diseases”))) AND (((“Package of essential non communicable diseases interventions”) OR “WHO-PEN”) OR “World Health Organization-Package of essential non communicable diseases interventions”)))

Embase, May 2020, Results: 9

#1 (“Non communicable diseases/classification,” OR #2 “Non communicable diseases/drug therapy,” OR #3 “Non communicable diseases/organization and administration,” OR #4 “Non communicable diseases/prevention and control,” OR #5 “Non communicable diseases/therapy,” OR #6 “NCDs/diagnostic investigations,” OR #7 “NCDs/basic equipment’s”, OR #8 “NCDs/essential medicines” OR #9 “NCDs”, OR #10 “Non communicable diseases”), AND # 11 “package of essential non communicable diseases interventions” OR #12 “who-pen,” OR #13 “world health organization-package of essential non communicable diseases interventions”) #1 OR #2 OR #3 OR #4 OR #5 OR #6 OR #7 OR #8 OR #9 OR #10 AND #11 OR #12 OR #13

Scopus, May 2020, Results: 12

(TITLE-ABS-KEY (“NCDs” OR “Non communicable diseases”)) OR (TITLE-ABS-KEY ((“Non communicable Diseases-classification”), OR (“Non communicable Diseases-drug therapy”), OR (“Non communicable Diseases-organization and administration”), OR (“Non communicable Diseases-prevention and control”))) AND (TITLE-ABS-KEY ((“Package of essential non communicable diseases interventions”) OR (“WHO-PEN”) OR (“World Health Organization-Package of essential non communicable diseases interventions”)))