What I love about this paper is that they actually mention: "One explanation for the results of this study is sexual technique and different partners" but then go on to dismiss that and offer their preferred explanation that it doesn't exist.
Oh dear! That's really atrocious! That poor woman author. And Dr. Yes you are right....I've just edited my posting. There are some things in life that NEED to be figured out, like retroviruses, and other things like g-spots that simply don't need scientific funding.