Given an abstract, generate a keyword (a noun phrase) that best describes the focus or contribution of the paper. Such keywords can be directly from the given abstract or outside it.

Example Input: Abstract: In recent years it has become increasingly apparent that cough is frequently the sign of airway hyperreactivity. While the association between cough and wheezing is well recognized in asthmatics, cough may be the only clinical manifestation of this problem. Emergency physicians frequently have occasion to evaluate the coughing patient. Awareness of this clinical entity should facilitate appropriate evaluation, management, and referral of these patients.
Example Output: Airway Obstruction

Example Input: Abstract: Children who have been sexually abused develop a variety of emotional and physical complaints, often unrelated to the genital area. Emergency department records of children diagnosed as being sexually abused were reviewed for the period covering January 1984 through June 1985. Of 26,000 patients seen, 300 cases of sexual abuse were identified. Of these, 57 were patients who presented with initial complaints other than sexual abuse. The data were analyzed for age, sex, chief complaint, time of presentation, physical findings, and person accompanying the child. The most common presenting complaints of these 57 patients were abdominal pain (26%) and vaginal symptoms (26%) The latter included pruritus, discharge, and bleeding. Other complaints included rectal bleeding or constipation (9%), chronic urinary tract infection (5%), straddle injury (4%), and suicide attempt (2%). The remaining 26% included fever, respiratory infections, sore throat, asthma, bronchitis, obesity, mastoiditis, and weight loss. Because resident physicians are instructed to conduct complete anal and genital examinations on all patients, sexual misuse was often diagnosed with seemingly unrelated complaints. A protocol developed for use in the emergency department is described.
Example Output: Child

Example Input: Abstract: The Coronary Drug Project was conducted between 1966 and 1975 to assess the long-term efficacy and safety of five lipid-influencing drugs in 8,341 men aged 30 to 64 years with electrocardiogram-documented previous myocardial infarction. The two estrogen regimens and dextrothyroxine were discontinued early because of adverse effects. No evidence of efficacy was found for the clofibrate treatment. Niacin treatment showed modest benefit in decreasing definite nonfatal recurrent myocardial infarction but did not decrease total mortality. With a mean follow-up of 15 years, nearly 9 years after termination of the trial, mortality from all causes in each of the drug groups, except for niacin, was similar to that in the placebo group. Mortality in the niacin group was 11% lower than in the placebo group (52.0 versus 58.2%; p = 0.0004). This late benefit of niacin, occurring after discontinuation of the drug, may be a result of a translation into a mortality benefit over subsequent years of the early favorable effect of niacin in decreasing nonfatal reinfarction or a result of the cholesterol-lowering effect of niacin, or both.
Example Output:
Adult