Given an abstract of a paper, generate a title for this paper such that conveys the key focus of the paper.

Abstract: This study evaluated quality of life in 78 patients with closed head injury (CHI) 2 to 4 years postinjury. Using both interview data and mean data from the Sickness Impact Profile questionnaire, impaired quality of life was observed in the areas of psychosocial functioning, social role functioning, leisure activities, and, to a lesser extent, physical functioning, during chronic phases of recovery. Relatives and close friends reported by means of the Katz Adjustment Scale that the CHI patients showed a series of negative behavioral symptoms 2 to 4 years postinjury. These data suggest that CHI patients may experience impaired quality of life in a number of domains well beyond the acute postinjury phases. An attempt was also made to compare patients' and relatives' reports of patient quality of life. Preliminary analyses indicated modest correspondence between relatives' and patients' ratings of some areas of postinjury dysfunction, including cognitive and behavioral slowing and social withdrawal.
Quality of life in patients 2 to 4 years after closed head injury.

Abstract: A new technique for percutaneous lumbar disc removal is described. The specially designed 2-mm blunt-tipped suction/cutting probe (nucleotome) is similar to the automated vitrectomy instrumentation used by ophthalmic surgeons. The procedure is performed under local anesthesia, with the patient in the prone position and with fluoroscopic guidance. The nucleotome is inserted into the appropriate disc space with specially designed instrumentation, guided by landmarks similar to those used in needle placement for chemonucleolysis. The technique has been evaluated in 20 patients with herniated discs (one at the L3-4 level and 19 at the L4-5 level) confirmed by myelography and/or computerized tomography scans after all conservative therapy for primarily radicular pain had failed. From 1 to 7 gm of disc material was removed in an average total operative time of approximately 1 hour. Eighty percent of the patients had good to excellent results in a short-term follow-up period of 6 months. Four patients subsequently required standard surgical excision of free disc fragments. No significant complications occurred. The procedure is contraindicated in patients with extruded or free fragments of disc in the spinal canal or in patients with herniations at the L5-S1 level pending development of additional instrumentation for insertion at that level. More extensive long-term studies are needed to further evaluate this procedure.
Percutaneous automated discectomy: a new method for lumbar disc removal. Technical note.

Abstract: In an epoxy resin manufacturing plant, 26 of 228 (11.4%) workers had work-related eruptions; 19 were patch tested. The test series consisted of chemicals used in the manufacturing process, a standard battery and some other sensitizers. The prevalence of sensitization to epichlorohydrin and/or epoxy resins in the whole group was 6.1%. A relatively high prevalence (3.5%) of epichlorohydrin sensitization was found. 10 cases of sensitization to liquid epoxy resin (MW about 385) were observed, in 7 cases combined with allergy to solid epoxy resin (MW 980). Sensitization to Bisphenol A was not seen.
Sensitization to epichlorohydrin and epoxy system components.