Given a passage with a context and an answer, construct a question on the basis of the information present in the passage. Construct the question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) it answer uses text phrases from the passage. Avoid creating questions that (i) can't be answered correctly without actually understanding the passage and (ii) uses the same words or phrases given in the passage.

Ex Input:
Context: Alefacept, human LFA-3/IgG1 fusion protein, is a novel biological agent currently being developed for the treatment of chronic plaque psoriasis. Alefacept selectively reduces the memory-effector T cells that have been implicated in the pathogenesis of the disease; as a result, alefacept is classified as a therapy that induces remission (so-called 'remittive' therapy). In a previously published randomized, placebo-controlled phase II study of intravenous alefacept in 229 patients with chronic plaque psoriasis, clinical improvement was observed during dosing as well as in the postdosing follow-up period.", 'To assess the remission period following alefacept therapy.', "The time before re-treatment was required was measured in patients who were 'clear' or 'almost clear' of disease according to a physician global assessment at the end of the follow-up phase.", 'In these patients, responses were sustained for a median of 10 months, and for up to 18 months. No patient reported disease rebound after cessation of alefacept.
Answer: Alefacept is a biological agent for the treatment of chronic plaque psoriasis that provides disease-free intervals and time off drug therapy.

Ex Output:
Does alefacept therapy produce remission for patients with chronic plaque psoriasis?


Ex Input:
Context: It is known that enhancement of sympathetic nerve activity based on a decrease in parasympathetic nerve activity is associated with fatigue induced by mental tasks lasting more than 30 min. However, to measure autonomic nerve function and assess fatigue levels in both clinical and industrial settings, shorter experimental durations and more sensitive measurement methods are needed. The aim of the present study was to establish an improved method for inducing fatigue and evaluating the association between it and autonomic nerve activity.', 'Twenty-eight healthy female college students participated in the study. We used a kana pick-out test (KPT) as a brief verbal cognitive task and recorded electrocardiography (ECG) to measure autonomic nerve activity. The experimental design consisted of a 16-min period of ECG: A pre-task resting state with eyes open for 3 min and eyes closed for 3 min, the 4-min KPT, and a post-task resting state with eyes open for 3 min and eyes closed for 3 min.', 'Baseline fatigue sensation, measured by a visual analogue scale before the experiment, was associated with the decrease in parasympathetic sinus modulation, as indicated the by ratio of low-frequency component power (LF) to high-frequency component power (HF), during the KPT. The LF/HF ratio during the post-KPT rest with eyes open tended to be greater than the ratio during the KPT and correlated with fatigue sensation. Fatigue sensation was correlated negatively with log-transformed HF, which is an index of parasympathetic sinus modulation, during the post-KPT rest with eyes open.
Answer: The methods described here are useful for assessing the association between fatigue sensation and autonomic nerve activity using a brief cognitive test in healthy females.

Ex Output:
Does fatigue correlate with the decrease in parasympathetic sinus modulation induced by a cognitive challenge?


Ex Input:
Context: Cytomegalovirus (CMV) remains the most common viral infection after pancreas-kidney transplantation (PKT). Comparative studies about CMV prophylaxis in PKT have not been developed.', 'We analyzed CMV disease in a cohort of 84 PKT recipients. All received intravenous ganciclovir during treatment with anti-thymocyte globulin and later one of the following options for pre-transplant CMV-seropositive recipients: (a) no prophylaxis (n=10 patients), (b) preemptive therapy (PT) (n=13), or (c) continuous prophylaxis (CP) for 12 weeks (n=29). Pre-transplant CMV-seronegative recipients received CP (n=21).', 'Eleven patients were excluded because of organ explantation in the first 15 days. Incidence of CMV disease in seropositive recipients was 30% under no prophylaxis, 23% under PT, and 6.9% under CP. Incidence of CMV disease under CP was 33.3% in seronegative recipients. Six of 9 episodes of CMV disease under CP occurred after finishing prophylaxis. Under CP, the incidence of CMV disease was significantly higher in seronegative than in seropositive recipients (P<0.05).
Answer: According to the results of our study, for CMV-seropositive PKT recipients, CP is a better strategy than PT. For CMV-seronegative recipients, 3 months of CP is an inadequate strategy.

Ex Output:

Is preemptive therapy adequate for prevention of cytomegalovirus disease in pancreas-kidney transplant recipients?