Scott Graham R, Samsell BJ, Proffer A, Moore MA, Vega RA, Stary JM, Mathern B. Evaluation of glycerol-preserved bone allografts in cervical spine fusion: a prospective, randomized controlled trial. J Neurosurg Spine. 2015 Jan;22(1):1-10. doi: 10.3171/2014.9.SPINE131005
Rothman KJ. BMI-related errors in the measurement of obesity. Int J Obes. 2008 Aug 1;32 Suppl 3:S56-9.
Sorensen HT, Sabroe S, Gillman M, Rothman KJ, Madsen KM, Fischer P. Continued increase in prevalence of obesity in young Danish men. Int J Obes. 1997 Aug;21(8):712-4.