TY - GEN AU - el-Sharkawi,A M TI - Second opinions in oncology: nuisance or opportunity? SN - 0936-6555 PY - 1998///1118 KW - Humans KW - Medical Oncology KW - Referral and Consultation N1 - Publication Type: Comment; Letter UR - https://doi.org/10.1016/s0936-6555(98)80023-x ER -