I don’t think they actively hide any research but I think the research you site is controversial even among pro-lifers.
http://www.nationalbreastcancer.org/About-NBCF/Our-Mission/default.aspxis
On what basis would the research be controversial among pro-lifers?
Actually, the facts aren’t the least bit controversial. It also makes perfect sense when you think it through.
We’re just a society in denial. And Planned Parenthood will do anything to prevent the facts from seeing the light.
There’s a wealth of information on the matter here:
http://www.abortionbreastcancer.com/index/