“…The wireless protocol was the most common for local-MVI communication and was used in 73.9% of the cases (Table 3). This included 26.1% for Bluetooth [11,21,30,31,33,34], 8.7% for ZigBee [22,24], and 39.1% for unspecified wireless protocols [12,19,20,23,25,28,29,32,33]. RS-232 protocols were used in 8.7% of the cases [14,37] and another 17.4% used other methods [15,16,20,36].…”