Figure 5.

Proportions of patients reporting that the 29-gauge (29G)/5-bevel needlea was better (responses of "much less" or "somewhat less"), similar (a "no difference" response) or worse (responses of "somewhat more" or "much more") than the 27G/3-bevel needle for questions that were unique to the US study (n = 78; see Table 2 for survey questions). aReferred to as the 'trial syringe' by the questionnaire.

Jaber et al. BMC Neurology 2008 8:38   doi:10.1186/1471-2377-8-38
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