http://reply.papertrans.cn/3/253/25220/25220-31.png
http://reply.papertrans.cn/3/253/25220/25220-32.png
Submitted on: 10 September 2009.
Revised on: 11 October 2009.
Accepted on: 06 November 2009.
PRIMARY CARE
Submitted on: 15 October 2019.
Revised on: 22 October 2019.
Accepted on: 29 October 2019.
PRIMARY CARE---W B SAUNDERS CO-ELSEVIER INC
http://reply.papertrans.cn/3/253/25220/25220-35.png
http://reply.papertrans.cn/3/253/25220/25220-36.png