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… Boil the water for 3 to 5 minutes. This is the most effective purification method but may be impractical if you … on the package. Purification tablets are not as effective as boiling or disinfecting with bleach, but they … Boil the water for 3 to 5 minutes. This is the most effective purification method but may be impractical if you …
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… warts. Some studies suggest that female condoms are as effective as male condoms in preventing STIs. footnote 2 How … 45–74. Atlanta: Ardent Media. Minnis AM, Padian NS (2005). Effectiveness of female controlled barrier methods in … 45–74. Atlanta: Ardent Media. Minnis AM, Padian NS (2005). Effectiveness of female controlled barrier methods in …