Sauchelli S, Bradley J, Cox J, England C, Perry R. Weight maintenance interventions for people with type 2 diabetes mellitus: a systematic review protocol. Syst Rev. 2020 Sep 12;9(1):210. doi: 10.1186/s13643-020-01467-7
Demeyin (Nuabor) WA, Frost J, Ukoumunne OC, Briscoe S, Britten N. N of 1 trials and the optimal individualisation of drug treatments: a systematic review protocol. Syst Rev. 2017 Apr 24;6(1):90. doi: 10.1186/s13643-017-0479-6
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