i guess you are in nursing program right?; m5 K/ k6 t& \. z% H; Q6 ^( M
do not use translator. some of them do not make sense. $ _" ^ @. d: Gtry to use english "answer" website. it might help5 N" B/ `: r" i: d3 T# Y# E
i have one but i never use it. well, leave me messages on "duan xiao xi'