input, f, a, "all", , ,	input printout selections ("one or more of the following:all cover visit obs")

output, f, h, "", , ,	copy of the input string
cover, b, h, , , ,	output flag for printing cover pages
visit, b, h, , , ,	output flag for printing visit level pages
obs, b, h, , , ,	output flag for printing observation pages

mode, s, h, "al"