Opioides en dolor crónico no oncológico

http://nationalpaincentre.mcmaster.ca/documents/opioid_guideline_part_b_v5_6.pdf?fbclid=IwAR2cTtbMDIdCFKYXnFyMHuGorOXq0bkaPDy2b9Jxp3nJHZt97EbMll67Iak