“…Then the main contributions are in Asia and America represented by China and the USA, respectively. Although there are applications in developing or emerging countries such as Brazil (Ramos and Silva, 2019; Tenório et al , 2016), Colombia (Benavides and López, 2018), sub-Saharan Africa (Gbolahan Balogun, 2019), South Africa (Nyembezi et al , 2016), Morocco (Slimani et al , 2018), Mexico (Romero-Rodríguez et al , 2019), Pakistan (Inayat et al , 2013) and Saudi Arabia (Siddiqui et al , 2008), these are in smaller proportions and, therefore, do not have their entire universe covered.…”