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: The goals of this study were to evaluate the complication rate for intraoperative placement of a long-term central venous catheter (CVC) using intraoperative ultrasound (US) and fluoroscopy and to examine the feasibility for eliminating routine postprocedure chest X-ray.', 'Retrospective data pertaining to operative insertion of long-term CVC were collected and the rate of procedural complications was determined.', 'From January 2008 to August 2013, 351 CVCs were placed via the internal jugular vein using US. Of these, 93% had a single, successful internal jugular vein insertion. The complications included 4 arterial sticks (1.14%). Starting in October 2012, postprocedure chest radiography (CXR) was eliminated in 170 cases, with no complications. A total of $29,750 in charges were deferred by CXR elimination.
Answer: This review supports the use of US for CVC placement with fluoroscopy in reducing the rate of procedural complications. Additionally, with fluoroscopic imaging, postprocedural CXR can be eliminated with associated healthcare savings.

Ex Output:
Does image-guided placement of long-term central venous catheters reduce complications and cost?

Ex Input:
Context: To describe the common locations of active trigger points (TrPs) in the temporalis muscle and their referred pain patterns in chronic tension type headache (CTTH), and to determine if pressure sensitivity maps of this muscle can be used to describe the spatial distribution of active TrPs.', 'Forty women with CTTH were included. An electronic pressure algometer was used to assess pressure pain thresholds (PPT) from 9 points over each temporalis muscle: 3 points in the anterior, medial and posterior part, respectively. Both muscles were examined for the presence of active TrPs over each of the 9 points. The referred pain pattern of each active TrP was assessed.', 'Two-way analysis of variance detected significant differences in mean PPT levels between the measurement points (F=30.3; P<0.001), but not between sides (F=2.1; P=0.2). PPT scores decreased from the posterior to the anterior column (P<0.001). No differences were found in the number of active TrPs (F=0.3; P=0.9) between the dominant side the nondominant side. Significant differences were found in the distribution of the active TrPs (chi2=12.2; P<0.001): active TrPs were mostly found in the anterior column and in the middle of the muscle belly. The analysis of variance did not detect significant differences in the referred pain pattern between active TrPs (F=1.1, P=0.4). The topographical pressure pain sensitivity maps showed the distinct distribution of the TrPs indicated by locations with low PPTs.
Answer: Multiple active TrPs in the temporalis muscle were found, particularly in the anterior column and in the middle of the muscle belly. Bilateral posterior to anterior decreased distribution of PPTs in the temporalis muscle in women with CTTH was found. The locations of active TrPs in the temporalis muscle corresponded well to the muscle areas with lower PPT, supporting the relationship between multiple active muscle TrPs and topographical pressure sensitivity maps in the temporalis muscle in women with CTTH.

Ex Output:
Are multiple active myofascial trigger points and pressure pain sensitivity maps in the temporalis muscle related in women with chronic tension type headache?

Ex Input:
Context: Studies examining physical activity levels have used samples primarily composed of non-Latino Whites and have focused on leisure time physical activity (LTPA). Additionally, few studies have investigated differences in physical activity between Latino men and Latina women, or the relationship between acculturation and activity.', 'To examine the subjective and objective physical activity of Latinos and gender differences in physical activity and the extent to which LTPA and non-LTPA were predictive of overall accelerometer physical activity. An additional objective was to examine the relationship between acculturation and different types of physical activity.', 'Data were obtained from 155 Latinos (n = 86 female, n = 69 male). Comparisons were made between Latino men and women.', 'Latino men participated in significantly greater occupational and overall objective and subjective physical activity than Latina women; however, women participated in greater household activity. Regression analyses demonstrated that recreational, occupational, and household activity were significant predictors of overall accelerometer physical activity for the complete sample. Among women, recreational and household activity were significant predictors; however, overall accelerometer physical activity was not significantly predicted in men. Additionally, it was demonstrated that acculturation was related to occupational activity, but not to recreational activity.
Answer: These results suggest that gender differences in physical activity are present among Latinos and that acculturation may be a correlate of various types of physical activity.

Ex Output:
Does gender and acculturation influence on physical activity in Latino adults?