Submitted on: 06 February 2001.
Revised on: 22 February 2001.
Accepted on: 10 March 2001.
Ultrasound Quarterly---LIPPINCOTT WILLIAMS & WILKINS
http://reply.papertrans.cn/4/302/30138/30138-32.png
http://reply.papertrans.cn/4/302/30138/30138-33.png
http://reply.papertrans.cn/4/302/30138/30138-34.png
Submitted on: 08 June 2017.
Revised on: 22 June 2017.
Accepted on: 13 July 2017.
Ultrasound Quarterly
http://reply.papertrans.cn/4/302/30138/30138-36.png