Submitted on: 30 June 2017.
Revised on: 17 August 2017.
Accepted on: 27 September 2017.
___________________AMERICAN FAMILY PHYSICIAN---AMER ACAD FAMILY PHYSICIANS
Submitted on: 02 January 2001.
Revised on: 09 March 2001.
Accepted on: 20 March 2001.
___________________AMERICAN FAMILY PHYSICIAN---AMER ACAD FAMILY PHYSICIANS
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Submitted on: 28 August 2018.
Revised on: 19 December 2018.
Accepted on: 11 February 2019.
___________________AMERICAN FAMILY PHYSICIAN---AMER ACAD FAMILY PHYSICIANS
http://reply.papertrans.cn/1/13/1266/1266-35.png
Submitted on: 20 February 2001.
Revised on: 21 March 2001.
Accepted on: 19 May 2001.
___________________AMERICAN FAMILY PHYSICIAN---AMER ACAD FAMILY PHYSICIANS