i guess you are in nursing program right? . c V0 u; C. B( Q, D$ Hdo not use translator. some of them do not make sense. # h4 M1 E5 u' m4 q& _. qtry to use english "answer" website. it might help 1 E# R" Y- s% ` }! Gi have one but i never use it. well, leave me messages on "duan xiao xi'