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http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Anonymous says December 5, 2011 at 7:24 pm Actually, NFP can be combined with another method, such as a diaphragm, so that sex can continue during ovulation.
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