Contraception
Volume 76, Issue 2 , Pages 139-156 , August 2007

Cervical dilation before first-trimester surgical abortion (<14 weeks' gestation)

,Accepted 18 April 2007.

References 

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PII: S0010-7824(07)00152-7

doi: 10.1016/j.contraception.2007.05.001

Contraception
Volume 76, Issue 2 , Pages 139-156 , August 2007