Fig. 1
From: Safety profile of prophylactic rescue dosing of immediate-release oral opioids in cancer patients
The device for quantitative analyses of perception and painful sensations and its probe. Fig. 1 indicated the 103 patients included in the study, 68 and 35 patients were in the prophylactic and regular groups, respectively. Patients were further divided into subgroups based on the type of opioid used; 38, 30, 14, and 21 patients were in the prophylactic morphine, prophylactic oxycodone, regular morphine, and regular oxycodone groups, respectively