David Gahn

发表

G. Saade, R. Bukowski, R. Bukowski, 2001, American journal of obstetrics and gynecology.

Amanda E. Janitz, S. Martinez, Janis E Campbell, 2014, The Journal of the Oklahoma State Medical Association.

W. C. Maples, Wes DeRosier, Shannon Toomey, 2007, Optometry.

J. Ward, H. Carabin, D. Drevets, 2016, MMWR. Morbidity and mortality weekly report.