“…We used the multiple travelling salesman problem approach, so that every patient would be visited once along the shortest possible route. The mathematical model is based on our previous work (Szander et al, 2016), but there we assigned nurses based on the idea that every patient wants to receive help from the nurse he or she has got used to, which is not the case here. The multiple travelling salesman problem approach was modified and formalised as described in Tolga Bektas (2006).…”