Figure 2

Flow chart of study procedures, drop out explanations and adverse events. Abbreviations: SAB, subacromial bursa; ACJ, acromioclavicular joint; PAR, positive anaesthetic response.
Flow chart of study procedures, drop out explanations and adverse events. Abbreviations: SAB, subacromial bursa; ACJ, acromioclavicular joint; PAR, positive anaesthetic response.