David L. Williams

发表

A. Danielski, K. Forster, F. Dias, 2017, Journal of the American Veterinary Medical Association.

K. Miyazawa, J. Farley, M. Yancey, 2002, Obstetrics and gynecology.

Ridhimaa Gupta, P. Gantt, J. Bozzay, 2015, Case reports in obstetrics and gynecology.

J. McBroom, C. Dietrich, David L. Williams, 2000, Obstetrics and gynecology.