1	0	49759	inner, ear, cochlear, implant, intraop, intra-op, intraoperative, intra-operative, surgery, surgical, procedure
1.1	0	14103	inner, ear, cochlear, implant, intraop, intra-op, intraoperative, intra-operative, surgery, surgical, procedure, scalp, incision
1.1.1	7550	8460	inner, ear, cochlear, implant, intraop, intra-op, intraoperative, intra-operative, surgery, surgical, procedure, scalp, incision, retractor, retraction
1.1.2	12278	12540	inner, ear, cochlear, implant, intraop, intra-op, intraoperative, intra-operative, surgery, surgical, procedure, scalp, incision, retractor
1.2	14104	49759	inner, ear, cochlear, implant, intraop, intra-op, intraoperative, intra-operative, surgery, surgical, procedure, mastiod, bone, drill, drilling
1.2.1	14104	17311	inner, ear, cochlear, implant, intraop, intra-op, intraoperative, intra-operative, surgery, surgical, procedure, mastiod, bone, drill, drilling, microscope
1.2.2	17312	18240	inner, ear, cochlear, implant, intraop, intra-op, intraoperative, intra-operative, surgery, surgical, procedure, mastiod, bone, drill, drilling, monitoring, instruments, devices
1.2.3	20558	22454	inner, ear, cochlear, implant, intraop, intra-op, intraoperative, intra-operative, surgery, surgical, procedure, mastiod, bone, drill, drilling, anesthetist, anesthetic, monitoring, instruments, devices
1.2.4	22455	24333	inner, ear, cochlear, implant, intraop, intra-op, intraoperative, intra-operative, surgery, surgical, procedure, mastiod, bone, drill, drilling, microscope
1.2.5	25036	26446	inner, ear, cochlear, implant, intraop, intra-op, intraoperative, intra-operative, surgery, surgical, procedure, mastiod, bone, drill, drilling, microscope
1.2.6	32955	34377	inner, ear, cochlear, implant, intraop, intra-op, intraoperative, intra-operative, surgery, surgical, procedure, mastiod, bone, drill, drilling, raising, elevating, elevation, pericranium