1. Pregnancies of unknown location after in vitro fertilization: minimally invasive management with Karman cannula aspiration 
Paula Brady, M.D., Anthony N. Imudia, M.D., Awoniyi O. Awonuga, M.D., Diane L. Wright, Ph.D., Aaron K. Styer, M.D., Thomas L. Toth, M.D. 
Fertility and Sterility 
Volume 101, Issue 2, Pages (February 2014)
DOI: /j.fertnstert
Copyright © 2014 American Society for Reproductive Medicine Terms and Conditions

2. Figure 1
Diagnostic outcomes of pregnancies of unknown location from fresh and frozen IVF cycles using autologous oocytes. Pregnancy of unknown location defined as a positive serum β-hCG without evidence of extrauterine or intrauterine pregnancy on transvaginal ultrasound. Abnormal β-hCG trend defined as an increase <53% or a decrease <15% in 2 days. Early failed intrauterine pregnancy diagnosed by β-hCG decline ≥15% after sampling (“adequate β-hCG decline,” n = 30) and/or villi on final pathologic diagnosis (“Villi,” n = 21). Presumed ectopic pregnancies (EP) met neither criterion.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2014 American Society for Reproductive Medicine Terms and Conditions