na INLIS000000000000781 20231110052955 0010-1123000572 ta 231110 g 0 eng 92 4 154482 1 616.047 2 World Health Organization Geneva Cancer Pain Relief : With a guide to opioid availability / World Health Organization Geneva 2 SINGAPORE : World Health Organization Geneva, 1996 vi ; 63 : Tabel, Gambar ; 15 x0.5 x 21