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SummaryThe analgetic action of 50 % DMSO ointment and placebo ointment was studied in patients with arthrosis by the double blind method. A total of 100 treatment experiments of one month each were carried out. Favourable results were obtained in 76 % of the cases with both ointments. Since even placebo gives good subjective results in musculoskeletal diseases like arthrosis, the necessity of double blind tests in studies of this type is emphasized because of the psychic components of these chronic diseases.
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Vuopala et al. (1971) studied this question.
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