BMI and OCP failure
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PII: S0010-7824(09)00413-2
doi:10.1016/j.contraception.2009.09.003
© 2010 Elsevier Inc. All rights reserved.
PII: S0010-7824(09)00413-2
doi:10.1016/j.contraception.2009.09.003
© 2010 Elsevier Inc. All rights reserved.