PT - JOURNAL ARTICLE AU - Tatsuma Sakaguchi AU - Toru Kajiyama AU - Mafumi Miyake AU - Toshiro Katayama TI - Tramadol for moderate cancer pain: a reappraisal AID - 10.1136/spcare-2022-003819 DP - 2022 Aug 08 TA - BMJ Supportive & Palliative Care PG - spcare-2022-003819 4099 - http://spcare.bmj.com/content/early/2022/08/08/spcare-2022-003819.short 4100 - http://spcare.bmj.com/content/early/2022/08/08/spcare-2022-003819.full