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).

Ex Input:
Abstract: Placement of an unheated miniaturized oxygen electrode against the palpebral conjunctiva permits noninvasive measurement of tissue oxygen tension. In this study, the relationship between conjunctival oxygen tension (PcjO2) and standard cardiorespiratory variables was examined during a sequential resuscitation protocol after acute hemorrhage. Anesthetized dogs were rapidly bled to a mean arterial pressure of 40 mm Hg and then retransfused with the shed blood in a stepwise fashion. PcjO2 fell to 2% of control values after hemorrhage and did not return to prehemorrhage values until more than 90% of the shed blood had been reinfused. PcjO2 was among the last set of cardiorespiratory variables to return to control values during resuscitation and was the last noninvasive variable to normalize. The ratio of PcjO2 to arterial oxygen tension decreased from a prehemorrhage value of 0.76 +/- 0.05 (SEM) to 0.02 +/- 0.003 after hemorrhage, and did not increase to values greater than 0.50 until resuscitation was more than 90% complete. Conjunctival oxygen monitoring may play an important role in assessing the adequacy of resuscitation after acute hemorrhage.
Which is the apt title for the abstract? option1: Cardiorespiratory and conjunctival oxygen tension monitoring during resuscitation from hemorrhage. option2: Coping and recovery styles in the Vietnam era prisoner of war.

Ex Output:
Cardiorespiratory and conjunctival oxygen tension monitoring during resuscitation from hemorrhage.

Ex Input:
Abstract: Twenty-three male Black African and 23 male Caucasian subjects, ascertained as sedentary, participated in this study designed to determine whether there were differences in skeletal muscle histochemical and biochemical characteristics between racial groups. Muscle fiber type proportions (I, IIa, and IIb), fiber areas and activities of several enzyme markers of different energy metabolic pathways were determined from a biopsy of the vastus lateralis. Results indicated that Caucasians had a higher percent type I (8%, P less than 0.01) and a lower percent type IIa (6.7%, P less than 0.05) fiber proportions than Africans. No significant differences were observed between the two racial groups in the type IIb fiber proportion or in the three fiber type areas. Enzymes catalyzing reactions in phosphagenic [creatine kinase (CK)] and glycolytic [hexokinase (HK), phosphofructokinase (PFK), and lactate dehydrogenase (LDH)] metabolic pathways had significantly higher activities (about 30-40%) in the Black African group than in the Caucasian group (P less than 0.01). No significant difference was noted in the activities of oxidative enzymes [malate dehydrogenase (MDH), oxoglutarate dehydrogenase (OGDH), and 3-hydroxyacyl-CoA dehydrogenase (HADH)]. Consequently, the PFK/OGDH ratio was significantly elevated in Africans (P less than 0.05). The racial differences observed between Africans and Caucasians in fiber type proportion and enzyme activities of the phosphagenic and glycolytic metabolic pathways may well result from inherited variation. These data suggest that sedentary male Black individuals are, in terms of skeletal muscle characteristics, well endowed for sport events of short duration.
Which is the apt title for the abstract? option1: Skeletal muscle characteristics in sedentary black and Caucasian males. option2: Effect of a high NaCl diet on the active mechanisms of Na+ extrusion in rat kidney.

Ex Output:
Skeletal muscle characteristics in sedentary black and Caucasian males.

Ex Input:
Abstract: Papillomas of the respiratory and genital tracts are caused by the same papillomavirus genotypes, and mothers of children with respiratory papillomatosis often have a history of genital warts. Only one of 109 cases reviewed gave a history of birth by cesarean section, whereas ten cesarean deliveries would have been the expected number for this group on the basis of national rates. The single case was delivered by elective cesarean section before the rupture of the membranes, and the child developed respiratory papillomatosis in the first year of life. These findings suggest that in juvenile-onset disease, the transmission of infection from mother to child occurs most often during passage through an infected birth canal, but that intrauterine infection of the fetus is also possible. Papillomavirus infection of the female genital tract is common, but respiratory papillomatosis is rare. On the basis of crude estimates of annual number of children born to infected mothers and of new cases of juvenile-onset disease, the risk of developing disease for a child born to an infected mother was calculated to be one in several hundred exposures.
Which is the apt title for the abstract? option1: Rarity of cesarean delivery in cases of juvenile-onset respiratory papillomatosis. option2: Infarction of the omentum in pregnancy [letter]

Ex Output:
Rarity of cesarean delivery in cases of juvenile-onset respiratory papillomatosis.