TY - GEN AU - Rosen,M TI - PCA--not as effective but still a valuable method SN - 0003-3022 PY - 1998///0714 KW - Analgesia, Epidural KW - methods KW - Analgesia, Obstetrical KW - Analgesia, Patient-Controlled KW - Female KW - Humans N1 - Publication Type: Comment; Letter UR - https://doi.org/10.1097/00000542-199806000-00046 ER -