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<http://webisa.webdatacommons.org/314575614>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<dartmouth.edu> .
<http://webisa.webdatacommons.org/314575614>	<http://www.w3.org/ns/prov#value>	"In general, drugs such as antibiotics can interfere with the pill's efficacy and a back-up method must be used for every day that you are on the medication plus 1 week." .
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