The main limitation was that the purposive selection of volunteers may have led to some bias in who was invited to join the qualitative trial.
Further qualitative clinical trials evaluating the effect of mistletoe on breast cancer patients must address safety parameters, standard dosage, and appropriate endpoint measures.
Sixty-seven electronic databases were searched for the identification of qualitative CAM trials, including CAM databases, nursing, nutrition, psychological, social, medical databases, the Cochrane Library and DIMDI.
Several techniques have been proposed for this purpose thus far; however, most of these are based on qualitative or trial-and-error approaches.
It is a single-center, prospective, semi-qualitative observational trial.
1 4 Finally, the actual impact of this qualitative research on trials may be located in articles reporting the trials, although even studies of all documents and publications of these types of studies found a lack of integration of findings from the trial and qualitative research.
Researchers have described a wide variety of uses for qualitative research in trials of complex interventions at different stages of the trial e.g. before, during and after a trial [ 1, 2].
CTUs are beginning to explicitly manage the process, for example, through the use of standard operating procedures for designing and implementing qualitative research with trials.
Observational, cohort, case control, case series, qualitative studies, uncontrolled trials and laboratory studies were excluded.
3. Key words related to primary research: Randomised controlled trials, qualitative studies, intervention studies, evaluation.
