instruction:
Given an abstract, indicate which of the provided candidate titles (Option1 and Option2) best describes it (respond with the text of the title, not option1/2).
question:
Abstract: Chronic pain in the perineum is a difficult neurosurgical problem. This article evaluates the effectiveness of sacrococcygeal rhizotomy in 28 patients who had cancer-related pain or coccydynia, underwent rhizotomy, and were followed for an average of 3 years. Good pain relief was obtained in 53% (10 of 19 patients) with malignant pain, as opposed to 22% (2 of 9 patients) with nonmalignant pain. Sacral rhizotomy is a reasonable treatment for cancer-related perineal pain, but it is ineffective for coccydynia and other benign perineal pain problems.
Which is the apt title for the abstract? option1: Sacrococcygeal rhizotomy for perineal pain. option2: NIMH review of fraud charge moves slowly [news]
answer:
Sacrococcygeal rhizotomy for perineal pain.

question:
Abstract: Norepinephrine concentrations and tyrosine hydroxylase activity were determined in the brains of moderate-seizure and severe-seizure genetically epilepsy-prone rats (GEPRs) and in nonepileptic control rats. Both moderate-seizure (GEPR-3) and severe-seizure (GEPR-9) animals had widespread abnormalities in brain norepinephrine concentrations. Abnormalities in tyrosine hydroxylase activity were restricted to the midbrain. The state of abnormal seizure susceptibility, but not severity, in the GEPR may be determined by noradrenergic deficits in the hypothalamus/thalamus. Both seizure severity and susceptibility may be determined by noradrenergic deficits in the telencephalon, midbrain, and pons-medulla. Seizure severity but not susceptibility may be determined by noradrenergic abnormalities in the cerebellum.
Which is the apt title for the abstract? option1: Indices of noradrenergic function in the central nervous system of seizure-naive genetically epilepsy-prone rats. option2: Psychogenic upper airway obstruction presenting as refractory wheezing.
answer:
Indices of noradrenergic function in the central nervous system of seizure-naive genetically epilepsy-prone rats.

question:
Abstract: Eighteen patients underwent computed tomography (CT) prior to total laryngectomy. In order to assess the accuracy of CT scanning in the evaluation of carcinoma of the larynx, CT scans were prospectively interpreted and the extent of the tumour was recorded. The tumour extent was evaluated on whole-mount histologic sections of the laryngeal specimens, prepared in the horizontal plane, similar to the CT scan. The results were compared to assess the ability of CT to identify tumour infiltration in the horizontal plane accurately. Based on these findings it is clear that CT has its influence on the T-staging and on the choice of treatment of laryngeal cancer, i.e. radiotherapy versus surgery.
Which is the apt title for the abstract? option1: Computed tomography: a mandatory investigational procedure for the T-staging of advanced laryngeal cancer. option2: HLA-linked nonresponsiveness to Cryptomeria japonica pollen antigen. I. Nonresponsiveness is mediated by antigen-specific suppressor T cell.
answer:
Computed tomography: a mandatory investigational procedure for the T-staging of advanced laryngeal cancer.