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Laboratory Examinations and DiagnosesLaboratory ProceduresFamily PlanningAntifertility AgentsContraceptive AgentsTLC SeparationArtificial InseminationETHINYL ESTRADIOLOral ContraceptiveControl AgentsSex DeterminationBull SpermScale TestMass SpectrometryHuman PlasmaEthinyloestradiolN-arylContraceptionSPERMMethoxy
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