TY - GEN AU - MacConnachie,A M TI - Analgesics in the management of chronic pain. Part four: Step 3 oral analgesic drug therapy SN - 0964-3397 PY - 1999///1209 KW - Administration, Oral KW - Analgesics, Opioid KW - pharmacokinetics KW - Chronic Disease KW - Dextromoramide KW - Drug Administration Schedule KW - Humans KW - Hydromorphone KW - Morphine KW - Pain KW - drug therapy N1 - Publication Type: Journal Article UR - https://doi.org/10.1016/s0964-3397(98)80693-9 ER -