i guess you are in nursing program right? 3 S! X9 i0 O: u; P- Qdo not use translator. some of them do not make sense. , U. G' ^$ q$ L; _4 Ztry to use english "answer" website. it might help R: s" R# O/ D1 li have one but i never use it. well, leave me messages on "duan xiao xi'