Li, I found what I as looking for. With a video link. http://www.sierrabiotech.com/bt_copd_chestpt.htmlhttp://www.sierrabiotech.com/chest_pt2_9.wmvS
Li,
ReplyDeleteI found what I as looking for. With a video link.
http://www.sierrabiotech.com/bt_copd_chestpt.html
http://www.sierrabiotech.com/chest_pt2_9.wmv
S