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: We performed a longitudinal study (mean follow-up 19.5 months, range 3 to 42 months) in 18 consecutive children with clinical symptoms of LAV/HTLV III infection. Twelve patients were born to mothers infected with LAV/HTLV III, and six were infected by blood products administered during the first weeks of life. Immunologic studies included lymphocyte markers, in vitro responses to mitogens and antigens with corresponding skin tests, and antibody response with isoagglutinins, post-vaccination antibodies, and Candida. A serologic profile of antibody to GP110, P18, and P25 LAV/HTLV III antigens by radioimmunoprecipitation assay was also performed. The antigen-induced proliferative responses were normal in 10 patients who had a stable course, but were profoundly impaired in eight others who died or had poor condition with opportunistic infections. These in vitro measurements were well correlated with antigen skin tests. An abnormal antibody response to antigens, a low level of isoagglutinins, and a peculiar profile of LAV/HTLV III antibodies were also frequently observed in these eight patients. These measurements appear to be of prognostic value because they were noticed soon after onset of clinical symptoms.
Example Output: Acquired Immunodeficiency Syndrome

Example Input: Abstract: The technique of alcohol injection in the vulva is reserved for the attempted relief of pruritus vulvae in patients who have failed to respond to a conscientious trial of medical therapy. The procedure is time-consuming, but the operative time can be shortened significantly if a transparent adhesive drape with a grid drawn on it is applied to the vulva before injection.
Example Output: Adhesiveness

Example Input: Abstract: Five children with chronic renal failure and severe rachitic deformities of the lower limbs were treated with 1 alpha-hydroxyvitamin D (1 alpha-OHD3) for 16 to 53 months. There was symptomatic, biochemical and radiological improvement in all five children and operative correction of their deformities was not needed. We recommend a trial of treatment with 1 alpha-OHD3 for this condition before surgical procedures.
Example Output:
Aluminum Hydroxide

