http://reply.papertrans.cn/3/265/26482/26482-31.png
http://reply.papertrans.cn/3/265/26482/26482-32.png
http://reply.papertrans.cn/3/265/26482/26482-33.png
Submitted on: 14 August 2020.
Revised on: 04 September 2020.
Accepted on: 19 September 2020.
Respiratory Care---DAEDALUS ENTERPRISES INC
http://reply.papertrans.cn/3/265/26482/26482-35.png
http://reply.papertrans.cn/3/265/26482/26482-36.png