Erik Lehman

发表

Vernon M. Chinchilli, Homer A. Boushey, Monica Kraft, 2006 .

Kevin O. Hwang, Melissa A Clark, Carla K. Miller, 2011, American journal of preventive medicine.

Eugene J Lengerich, Stephen W Wyatt, E. Lengerich, 2005, The Journal of rural health : official journal of the American Rural Health Association and the National Rural Health Care Association.