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).

Example Input: Abstract: To summarize the results: Bilirubin removal by hemoperfusion was successfully performed for the first time on a premature infant. The hemoperfusion caused no adverse effects on the clinical state of the infant. The bilirubin removed in 90 min--13 mg--indicates the existence of a large extravascular pool. Hemoperfusion is suggested for bilirubin removal from newborn babies, reducing the need for blood exchange with bank blood.
Which is the apt title for the abstract? option1: Bilirubin removal from a jaundiced premature infant by resin hemoperfusion. option2: The potential role of common dermatologic practice technics in transmitting disease [letter]
Example Output: Bilirubin removal from a jaundiced premature infant by resin hemoperfusion.

Example Input: Abstract: The population of common seal Phoca vitulina in the westernmost part of the Wadden Sea, The Netherlands, has collapsed during the past few decades. Between 1950 and 1975 the population dropped from more than 3,000 to less than 500 animals. Comparative studies of common seal populations from different parts of the Wadden Sea reveal that pup production has declined sharply only in the western (Dutch) part. A comparative toxicological study on the levels of heavy metals and organochlorines in tissues of seals from the western and northern parts of the Wadden Sea shows that only the polychlorinated biphenyl (PCB) levels differ significantly. This is predominantly a result of PCB pollution from the river Rhine, which mainly affects the western (Dutch) part. PCBs are thought to be responsible for the low rate of reproduction in Dutch common seals on the basis of epidemiological and experimental data on the ability of PCBs to interfere with mammalian reproduction. Here I report that reproductive failure in common seals from the Dutch Wadden Sea is related to feeding on fish from that polluted area. This is the first demonstration of a causal relationship between naturally occurring levels of pollutants and a physiological response in marine mammals.
Which is the apt title for the abstract? option1: Reproductive failure in common seals feeding on fish from polluted coastal waters [published erratum appears in Nature 1986 Dec 4-10;324(6096):418] option2: Ferrite particles: a superparamagnetic MR contrast agent for the reticuloendothelial system.
Example Output: Reproductive failure in common seals feeding on fish from polluted coastal waters [published erratum appears in Nature 1986 Dec 4-10;324(6096):418]

Example Input: Abstract: Nitrogen balance in response to varying caloric intake was studied in 17 non-steroid-treated patients with isolated severe head injury (Glasgow Coma Scores, 4-9). Nitrogen excretion was found to remain relatively stable or to rise in response to protein intake over a wide range of nonprotein calorie intakes. Urine urea nitrogen excretion was not related to caloric intake, but was correlated (p less than 0.04) with nitrogen intake. In this study protein conservation was not achieved by increasing caloric intake up to and beyond two times the basal energy expenditure in the brain-injured patient. In these patients nitrogen balance could only be achieved by nitrogen intakes in excess of the high protein catabolic rate. These findings argue for a central control mechanism for protein catabolism that is independent of the magnitude of peripheral tissue injury.
Which is the apt title for the abstract? option1: Failure of nonprotein calories to mediate protein conservation in brain-injured patients. option2: Bone and joint sepsis.
Example Output:
Failure of nonprotein calories to mediate protein conservation in brain-injured patients.