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Boxplot of an acromion index (AI) for each group. An AI is significantly different between groups (p < 0.01 via analysis of variance). The vertical axis is AI and the horizontal axis is the five distinct tear size groups, i.e. A partial-thickness articular side tear group, B small-sized full-thickness tear group, C medium-sized full-thickness tear group, D large-sized full-thickness tear group, E massive tear group (AI is measured in centimetres)
