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).

Q: Abstract: Thirty adult Wistar rats underwent an extradural clip compression injury of 50 g of force for 1 minute at T-1. After injury, the animals were randomly separated into three groups: the control group received a saline infusion for the 2-hour treatment period; the second group was given a blood transfusion over 2 hours titrated to maintain mean systemic arterial pressure (MSAP) at preinjury levels; and the third group received an intravenous bolus dose of naloxone (10 mg/kg), followed by a 2-hour infusion of intravenous naloxone (2 mg/kg/minute). The rats were observed postoperatively for 15 weeks, during which their clinical recovery was measured weekly by the inclined plane technique. At 15 weeks, the spinal cords were removed and prepared for histological assessment. The blood pressure before, during, and immediately after injury did not differ statistically among the three groups. During the initial 2 hours after injury, blood transfusion produced a significant increase in MSAP (P less than 0.02) and hematocrit (P less than 0.001), but naloxone infusion did not result in a significant change in MSAP. Performance on the inclined plane at 15 weeks was 35.6 +/- 6 degrees, 32.7 +/- 4 degrees, and 36.1 +/- 6 degrees for the control, transfusion, and naloxone groups, respectively, and no significant differences were found (P greater than 0.05). Histological examination confirmed a consistent injury of moderate severity in all three groups with no major differences among groups. Thus, this study demonstrates no significant clinical benefit either from a blood transfusion to maintain MSAP or from naloxone given by bolus and infusion after an extradural clip compression injury of the rat spinal cord.(ABSTRACT TRUNCATED AT 250 WORDS)
Which is the apt title for the abstract? option1: Failure of blood transfusion or naloxone to improve clinical recovery after experimental spinal cord injury. option2: Economic impact of low-osmolality contrast agents on radiology procedures and departments.

A: Failure of blood transfusion or naloxone to improve clinical recovery after experimental spinal cord injury.
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Q: Abstract: Emergency department utilization by recipients of Aid to Families with Dependent Children (AFDC) in a metropolitan children's hospital was monitored during a 36-month period (July 1982 to June 1985). There were 92,495 emergency department visits recorded in this interval. During 12 months of this period (July 1983 to June 1984) a pilot program (Citicare) for AFDC recipients requiring prior authorization by the primary care physician for emergency department utilization was in effect. Emergency department census dropped dramatically and abruptly upon initiation of this program. Annual census for the targeted years reveals: 35,704 visits for the 12 months preceding this novel program, 25,543 visits for the 12 months of the program, and 31,248 visits for the 12 months following the pilot program. Total emergency department census was decreased by 23% and medical assistance utilization was decreased by 46% during the Citicare program. During the target period, self-pay clients decreased by 25%, and other categories (Champus, Hill-Burton, Crippled Children's Commission, etc.) increased by 6%. There was no corresponding decline in the number of patients admitted to the hospital through the emergency department during the monitoring period with 3,545, 3,555, and 3,922 annualized admissions respectively, for the targeted 12-month periods. These data suggest that the format of Medicaid programs can dramatically alter the utilization of emergency department services. Furthermore, the primary impact of this specific program was to decrease inappropriate emergency department use.
Which is the apt title for the abstract? option1: Can Medicaid format alter emergency department utilization patterns? option2: Cerebral edema associated with intracranial tumors [editorial]

A: Can Medicaid format alter emergency department utilization patterns?
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Q: Abstract: The accessory optic system (AOS), which was described as early as 1870 by Gudden, constitutes a distinct midbrain visual pathway in all classes of vertebrates. In non-primate mammals, retinal fibres of this system project to a set of three nuclei: the dorsal (DTN), the lateral (LTN) and the medial (MTN) terminal nuclei. Whereas all AOS cells respond to the slow motion of large visual stimuli, the neurons are tuned to complementary directions of movement: horizontal temporo-nasal direction for the DTN, vertical up and down for the LTN and vertical down for the MTN. It has thus been suggested that these nuclei establish a system of retinal coordinates for the detection of whole field motion. As the AOS provides direct and indirect pathways to both oculomotor and vestibular structures, each of these nuclei is thought to be an essential link in the co-ordination of eye and head movements in relation to movement within the visual-field. One problem for the generalization of this theory is that the medial terminal nucleus has never been found in primates. In this report we establish both the existence of this nucleus and its afferent input from the retina in all major groups of primates (prosimians, New and Old World monkeys and apes), indicating a common anatomical plan of organization of the AOS in mammals.
Which is the apt title for the abstract? option1: A common mammalian plan of accessory optic system organization revealed in all primates. option2: Ferrite particles: a superparamagnetic MR contrast agent for enhanced detection of liver carcinoma.

A:
A common mammalian plan of accessory optic system organization revealed in all primates.
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