MacKay RE, Gross JM, Hepburn KW, Spangler SA, ARC Study Group. Nurse- and midwife-led HIV services in Eastern and Southern Africa: challenges and opportunities for health facilities. J Assoc Nurse Aids C. 2020 Jul;31(4):392-404. doi: 10.1097/JNC.0000000000000176
Gascon M, Cirach M, Martinez D, Dadvand P, Valentin A, Plasencia A, Nieuwenhuijsen MJ. Normalized difference vegetation index (NDVI) as a marker of surrounding greenness in epidemiological studies: the case of Barcelona city. Urban For Urban Green. 2016 Sep;19:88-94. doi: 10.1016/j.ufug.2016.07.001