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).

Input: Consider Input: Abstract: A product of the recent physical fitness boom has been an increased demand for better care of sport and recreational injuries. This article gives an overview of the care available for such injuries. In addition, it also cautions against the kind of care that will only produce noncompliance in the pediatric patient.
Which is the apt title for the abstract? option1: Sports medicine. option2: Parathyroid hormone reduces acute ischemic injury of the myocardium.

Output: Sports medicine.

Input: Consider Input: Abstract: The murine IgG2a monoclonal antibody 6-19 binds to a wide variety of nonhematopoietic cells including human marrow-derived stromal cells but does not bind to marrow or peripheral blood cells. We studied the effects of this antibody and rabbit complement on marrow cells. Fibroblast colonies were eliminated from light density marrow cells by a single incubation with monoclonal antibody 6-19 and complement. The growth and composition of granulocytic and erythroid colonies were unaffected. Specific complement mediated cytotoxicity of the antibody was confirmed on passaged human fibroblasts derived from marrow (more than 99.6% of fibroblasts are killed by a single treatment). Similar results were obtained with human umbilical cord endothelial cells. In addition, such treatment abolished the initiation of Dexter culture stroma. Incubation of bone marrow cell suspensions with this antibody and complement will allow the study of stroma-free marrow cells in long-term liquid cultures.
Which is the apt title for the abstract? option1: Lysis of human fibroblast colony-forming cells and endothelial cells by monoclonal antibody (6-19) and complement. option2: Mechanism of cardiac arrhythmias induced by epinephrine in dogs with hypokalemia.

Output: Lysis of human fibroblast colony-forming cells and endothelial cells by monoclonal antibody (6-19) and complement.

Input: Consider Input: Abstract: We report a 59-year-old, dark-complexioned black man with a giant basal cell carcinoma infiltrating virtually the entire scalp. Widespread metastatic bone marrow involvement produced a myelophthisic anemia. Basal cell carcinoma is rare in blacks, is rarely this large, and very rarely produces myelophthisic anemia from bone marrow metastases.
Which is the apt title for the abstract? option1: Giant basal cell carcinoma with metastases and myelophthisic anemia. option2: Frozen shoulder.
Output: Giant basal cell carcinoma with metastases and myelophthisic anemia.