TY - GEN AU - Roquefeuil,B TI - [The use of opioids by the regional route in the treatment of pain] SN - 0007-9685 PY - 1991///0920 KW - Analgesia, Epidural KW - Analgesics, Opioid KW - administration & dosage KW - Humans KW - Injections, Spinal KW - Pain KW - drug therapy N1 - Publication Type: English Abstract; Journal Article; Review ER -