Tosur Z, Green D, De Chavez PJ, Knutson KL, Goldberger JJ, Zee P, Liu K, Kim KY, Carnethon MR. The association between sleep characteristics and prothrombotic markers in a population-based sample: Chicago Area Sleep Study. Sleep Med. 2014Aug;15(8):973-8. PubMed PMID: 24924657; PubMed Central PMCID: PMC4117713