OMG, look at it. I'm so proud, my sister is on the internets in a scientific paper: http://www.annals.org/content/151/2/110
. She's listed as the second author also, which is pretty cool next to all those MD/PHDs (RN = Registered Nurse).
She's also mentioned as an author in a second paper, but neither are available for free it seems. Ebsco Academic Search has both if you have access to that.