“…The disease that has been studied most often is diabetes mellitus [15,[26][27][28][29][36][37][38][39][40][41][42]. According to that, 12 studies examined metabolic diseases, followed by 10 studies on diseases of the circulatory system [15,[17][18][19]29,30,34,[43][44][45], 10 studies on diseases of the musculoskeletal system [16,24,34,35,[46][47][48][49][50][51], seven on diseases of the respiratory system [22,23,32,33,[52][53][54], six on neoplasms [20,21,25,31,55,56], three on somatic diseases in general [57][58][59], and one on diseases of the digestive system …”