NFP's Impact on Relationship and Sexual Satisfaction by Unseld, Rotzer, Manhart et al.
MAJOR STUDY: 95% OF WOMEN REPORT NFP (natural family planning) helps them know their bodies better · Major Study: High rates of sexual frequency …
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MAJOR STUDY: 95% OF WOMEN REPORT NFP (natural family planning) helps them know their bodies better · Major Study: High rates of sexual frequency …
source
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