Given a passage, 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.

Q: Despite the clinical efficacy of recombinant human erythropoietin (RHE) on chemotherapy-induced anemia, most cost-effectiveness studies have given unfavorable results.', 'To determine the cost of managing anemia in unselected patients receiving chemotherapy for lung cancer, and the efficacy and cost-effectiveness of RHE.', 'We constructed Markov models of two cohorts of patients who received (n=94) or did not receive (n=89) darbepoetin (one weekly injection when the hemoglobin level fell below 11 g/dl), focusing on changes in hemoglobin levels, transfusion requirements, anemia management costs, and the cost-effectiveness ratios of the two management strategies.', 'The use of RHE significantly reduced the proportion of patients needing transfusions (from 33.6% to 19.1%, p<0.05) and the number of red cell units used by transfusion (from 2.97+/-1.47 to 2.11+/-0.47, p<0.01). Markov modeling showed that the RHE strategy significantly increased the mean Hb level (13+/-0.5 g/dl versus 11.9+/-1g/dl, p<0.001), at the price of an increase in the main cost (respectively, US$ 1732+/-897 and 996+/-643; p<0.01). The cost-effectiveness ratio favored the RHE strategy (7.02 versus 9.04). Sensitivity analysis showed that the RHE strategy remained dominant in most situations.

A: Is routine once-weekly darbepoetin alfa administration cost-effective in lung cancer patients with chemotherapy-induced anemia : a Markov analysis?
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Q: The purpose of this study was to compare the effect of whole body vibration (WBV) and local muscle vibration (LMV) on quadriceps function.', 'Sixty adults were randomized to WBV, LMV, or control groups. Quadriceps function [Hoffmann (H)-reflex, active motor threshold (AMT), motor evoked potential (MEP) and electromyographic amplitude, peak torque (PT), rate of torque development (RTD), and central activation ratio (CAR)] was assessed before and immediately after and 10 and 20 minutes after interventions.', 'WBV improved PT, CAR, AMT, EMG, and MEP amplitude, and EMG amplitude and CAR were greater than control after application. LMV improved EMG amplitude and AMT, and EMG amplitude was greater than control after application. AMT remained lower 10 and 20 minutes after WBV and LMV. No differences were noted between LMV and WBV. Vibration did not influence H-reflex or RTD.

A: Do immediate effect of vibratory stimuli on quadriceps function in healthy adults?
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Q: Contralateral groin exploration in children with unilateral inguinal hernia is still controversial, particularly in infants. The patency rate of processus vaginalis is highest in infants but there are few data on the subsequent risk of contralateral hernia development in infants. In this retrospective study, we aimed to find out the incidence of contralateral inguinal hernia following unilateral inguinal herniotomy in infants aged less than one year.', 'All infants who underwent a unilateral Inguinal herniotomy between January 1990 and December 1998 were studied retrospectively. Infants with bilateral hernia (n = 7) were excluded from the study.', 'One hundred and one infants (93 boys and 8 girls) were studied. Median age at operation was 23 (range 2-52) weeks. The herniotomy was right-sided in 75% of the infants. Follow-up ranged from three and a half years to 11 years. A contralateral hernia developed in nine infants (9.0%). One of the initial hernias was incarcerated. Median time from operation to occurrence of contralateral hernia was 18 (range 2-60) months. None of the contralateral hernia was incarcerated. Age, sex, incarceration and side of initial hernia did not influence the development of contralateral hernia.

A:
Is contralateral groin exploration justified in infants with a unilateral inguinal hernia?
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