The WHOQOL-HIV instrument was previously reported to have a good reliability and validity in different cultures worldwide [ 26- 28].
The samples were redissolved in 20 μl of 0.1% (vol/vol) trifluoroacetic acid in a tube, purified using C18 ZipTip pipette tips (Millipore, USA) following the manufacturer's instruction and then injected into the instrument as previously reported [28].
To this end, a Web-based survey questionnaire was assembled, based on previously reported instruments for measuring user satisfaction, usability, and user-based design.
Lumbar plexus injuries, which can occur when exposing the spine and placing instruments therein, have been previously reported [ 4, 5].
First, we conducted a literature review and identified previously reported instruments for collecting patient specific cost data.
We did not include applications of previously reported instruments that were used, for example, to assess a certain area of animal research.
Specific instruments and other measures previously reported in the literature were used where possible, to assess contextual factors as well as outcomes (Table 6).
This section of our questionnaire was a composite of four previously reported instruments itemizing spiritual needs that can be addressed by pastoral care.
Adapted from previously reported instruments (2, 9, 10), the L-PAQ captured detailed information on 3 primary domains of physical activity and specifically utilized an extensive, open-ended list of sports/recreational activities, plus an open-ended format for occupation that permitted respondents to report the specific activities in which they regularly engaged.
Patients in our study using the same instrument scored higher than previously reported.
