@misc{Health and Retirement Study2013,
author = {Health and Retirement Study},
title= {Biomarker data 2006, biomarker data 2008: Public use dataset},
year = {2013},
URL = {http://hrsonline.isr.umich.edu/index.php?p=avail},
publisher = {University of Michigan},
address = {Ann Arbor},
}