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).

Abstract: Identifying the parathyroid glands is of fundamental importance in thyroid and parathyroid surgery. We found that intravenous infusion of methylene blue was beneficial in intraoperative identification of the parathyroid glands in patients undergoing surgery for hyperparathyroidism as well as total and bilateral subtotal thyroidectomy. The technique is safe and easy to use, and it clearly reduces the operative time. We suggest that it be used routinely in thyroid and parathyroid surgery.
Which is the apt title for the abstract? option1: Methylene blue infusion for intraoperative identification of the parathyroid glands. option2: MR-guided aspiration biopsy: needle design and clinical trials.
Methylene blue infusion for intraoperative identification of the parathyroid glands.

Abstract: A case of symptomatic granular cell tumor of the esophagus is described. Another 32 cases collected from the English literature are analyzed. The reported cases have occurred mostly in women of less than 50 years of age presenting with dysphagia. Excision of the lesion is curative.
Which is the apt title for the abstract? option1: Symptomatic granular cell tumor of the esophagus. option2: Computer communications. Correlation, regression, and residuals: a graphical representation (for the IBM, PC or Compatible).
Symptomatic granular cell tumor of the esophagus.

Abstract: Effective tocolytic therapy depends on the ability to make an early diagnosis of preterm labor. This study was designed to assess whether daily ambulatory home monitoring of uterine activity could facilitate early diagnosis of preterm labor. Of 76 patients at high risk for preterm labor who used daily ambulatory tocodynamometry, approximately half developed preterm labor. Evaluation when the diagnosis of preterm labor was first established has shown that in 8% of the patients the cervix was dilated more than 2 cm, shortened to less than 0.5 cm in 23%, and the fetal membranes were intact in all subjects. The same evaluation in 76 nonrandom contemporary controls matched for risk factors, maternal age, and parity has shown that more than 50% had a cervix dilated more than 2 cm, 38% had a cervix shorter than 0.5 cm, and 24% had rupture of the fetal membranes. Ultimately, 88% of the monitored patients and 59% of controls delivered at term. Comparisons between these groups indicate that intermittent home tocodynamometry may indeed be useful in making the early diagnosis of preterm labor.
Which is the apt title for the abstract? option1: Detection of preterm labor by ambulatory monitoring of uterine activity: a preliminary report. option2: Unrecognized esophageal placement of endotracheal tubes.
Detection of preterm labor by ambulatory monitoring of uterine activity: a preliminary report.