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More scientific, safer, more accurate, more intimate! These four characteristics are BCT contraceptive test strip (ovulation test paper) products most obvious features. ... Detail>>
More scientific, safer, more accurate, more intimate! These four characteristics are BCT contraceptive test strip (ovulation test paper) products most obvious features. ... Detail>>
Determination of LH generation WHO expert committee pointed out: ovulation appeared in luteinizing hormone (also known as LH hormone) increased 32 hours after concentration (... Detail>>