A study of patient-reported pain during bone marrow aspiration and biopsy using local anesthesia alone compared with local anesthesia with intravenous midazolam coadministration at a tertiary academic hospital in South Africa.

18 Studies have shown that there may be significant differences among ethnic groups with regard to pain perception. 21 In view of South Africa's ethnic diversity, it was necessary to interrogate the role of ethnicity in the pain reported in this study.

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