Dr. O'Neill is a Penn Medicine physician who is employed by or has a contract with the Clinical Practices of the University of Pennsylvania.
Tufts University School of Medicine
Temple University Hospital
Penn Presbyterian Medical Center
51 N. 39th Street
Philadelphia, PA 19104
Horn A, O'Neill G, Costantino TG Pneumoperitoneum.. The Journal of Emergency Medicine 2009.
O'Neill Gerald M, Costantino Thomas G, Karras David Bilateral tubal ectopic pregnancies.. Annals of Emergency Medicine 50 (4) e1-2 2007.
O'Neill Gerald M, Prasanna Murthy S N, Lorand Laszlo, Khanna Richie, Liu Shih-Chun, Hanspal Manjit, Hanada Toshihiko, Chishti Athar H Activation of transglutaminase in mu-calpain null erythrocytes.. Biochemical and Biophysical Research Communications 307 (2) 327-31 2003.