by Barnes, Lindsey J., M.D, Unruh, Mitchell, M.D, Drake, Rachel M., M.Ed, Helmer, Stephen D., Ph.D, Ammar, Alex D., M.D, Osland, Jacqueline S., M.D
Published in The American journal of surgery (01.12.2014)

by George, Austin B., M.D, Schuster, Abbie, M.D, Helmer, Stephen D., Ph.D, Drake, Rachel M., M.Ed, Silkey, Beryl, Sc.M, Cusick, Therese E., M.D, Osland, Jacqueline S., M.D, Ammar, Alex D., M.D
Published in The American journal of surgery (01.12.2014)

by Grizzell, Brett E., M.D, Ammar, Alex D., M.D, Helmer, Stephen D., Ph.D
Published in The American journal of surgery (01.02.2012)