How and when human chorionic gonadotropin curves in women with an ectopic pregnancy mimic other outcomes: differences by race and ethnicity.
Dillon KE, Sioulas VD, Sammel MD, Chung K, Takacs P, Shaunik A, Barnhart KT. How and when human chorionic gonadotropin curves in women with an ectopic pregnancy mimic other outcomes: differences by race and ethnicity. Fertil Steril. 2012 Oct; 98(4):911-6.