Fig. 3From: Variations in pain prevalence, severity, and analgesic use by duration of survivorship: a cross-sectional study of 505 post-treatment head and neck cancer survivorsOpioid use by years of survivorship. Using the World Health Organization (WHO) analgesia ladder: Step 0 for no analgesia, Step 1 for non-opioid pain medication, Step 2 for weak opioids, or Step 3 for strong opioidsBack to article page