The real elephant in the room is durability. One study says 6% reduction every 8 weeks. If this is true, then the 95% effective number could drop to 62% after o

The real elephant in the room is durability. One study says 6% reduction every 8 weeks. If this is true, then the 95% effective number could drop to 62% after one year for an average efficacy of 78% over a 12 month period..