This is a scatter diagram, showing two columns of points, slightly jittered. The horizontal scale shows the period of Nicardipine treatment, first period then second period. The vertical scale shows difference in attackes, palcebo minus nicardipine, labelled minus 20, 0, 20, and 40. There is a horizontal line through zero. The column of points for first period runs from minus 16 to 16, with the zero line through the middle. The column of points for second period runs from minus 12 to 40, with the zero line dividing the column into one quarter and three quarters.

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This page maintained by Martin Bland.

Last updated: 17 July, 2009.