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: The development of mouse and human embryos was assessed in human amniotic fluid to determine its suitability as a culture medium for human in vitro fertilization (IVF). Two-cell mouse embryos developed to blastocysts after 72 hours at rates similar to that in Whittingham's T6 + 10% fetal calf serum. Significantly more mouse embryos hatched in amniotic fluid. No difference was found between individual patient's amniotic fluids obtained at 16 to 21 weeks' gestation. A preliminary trial comparing amniotic fluid with T6 + maternal serum in human IVF showed no significant difference in fertilization rate and embryo development during 42 to 48 hours in vitro. Expanded blastocysts were obtained in amniotic fluid after 5 days in vitro. Four pregnancies were obtained in 9 patients' transferred embryos grown in amniotic fluid and with 2 or 12 patients' transferred embryos grown in T6 + maternal serum.
Which is the apt title for the abstract? option1: The successful use of human amniotic fluid for mouse embryo culture and human in vitro fertilization, embryo culture, and transfer. option2: National survey of writers of dean's letters for residency applications.
Example Output: The successful use of human amniotic fluid for mouse embryo culture and human in vitro fertilization, embryo culture, and transfer.

Example Input: Abstract: Five cases of clinically manifest solitary and bilateral renal lesions metastatic from the lung are presented. These cases are unusual in that renal metastases are usually silent lesions discovered at autopsy. Review of the autopsy data from this hospital identified renal metastases in 19% of patients who died from carcinoma of the lung. This incidence parallels that of other series. A solid renal lesion which is identified in a patient with a history of pulmonary carcinoma should raise the suspicion of renal metastases, especially if computed tomography of the mass demonstrates relative homogeneity and minimal enhancement. More frequent use of the abdominal CT scan in staging patients with lung cancer will render metastatic carcinoma from lung to kidney a more frequent ante mortem diagnosis.
Which is the apt title for the abstract? option1: Renal metastases from carcinoma of the lung. option2: The effects of combined H1 and H2 histamine antagonists on alterations in nasal airflow resistance induced by topical histamine provocation.
Example Output: Renal metastases from carcinoma of the lung.

Example Input: Abstract: Dermatitis from 2-chloromethyl-4-phenyl-6-chloroquinazoline-3-oxide, an intermediate product in the preparation of chlorodiazepoxide, is described in 29 workers at a pharmaceutical plant. All were patch test positive to quinazoline oxide (1%) and six to 0.05%. In most patients, the face was earlier and more severely involved than the hands. Some were sensitized even if they did not have much contact with it, doing such work as washing the clothing of other workers, or working at a distance of 100 m from the production line building.
Which is the apt title for the abstract? option1: Dermatitis from quinazoline oxide. option2: Catecholamines in the vitreous fluid and urine of guinea pigs dying of cold and the effect of postmortem freezing and autolysis.
Example Output:
Dermatitis from quinazoline oxide.