Figure 4
From: Variation of cataract surgery costs in four different graded providers of China
The average cost for intraocular lens from four different graded providers in November 2009. Horizontal lines in each box plot represent (bottom to top) 10th, 25th, 50th (median), 75th, and 90th percentiles. Values above the 90th and below the 10th percentile are plotted as stars. The abbreviations used are: ZOC, Zhongshan Ophthalmic Center; UH, Union Hospital; FHJ, First Hospital of Jingzhou; JCH, Jingshan County Hospital.