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Central macular thickness over time. The box plot displays the median (line inside the box); interquartile range (the 25th percentile is the bottom of the box and the 75th percentile is the top of the box); minimum and maximum observations within 1.5 × the interquartile range (upper and lower fences extending from the box); and outliers larger than 1.5 × the interquartile range (single dots).
