i guess you are in nursing program right? 7 w6 z- R. U' ?9 {do not use translator. some of them do not make sense. 6 a1 @4 `( o1 N1 |try to use english "answer" website. it might help 7 s3 u% U* f6 w6 ]. Yi have one but i never use it. well, leave me messages on "duan xiao xi'