Effect of preovulatory progesterone elevation and duration of progesterone elevation on the pregnancy rate of frozen–thawed embryo transfer in natural cycles Vivian Chi Yan Lee, M.B.B.S., Raymond Hang Wun Li, M.B.B.S., Joyce Chai, M.B.B.S., Tracy Wing Yee Yeung, M.B.B.S., William Shu Biu Yeung, Ph.D., Pak Chung Ho, M.D., Ernest Hung Yu Ng, M.D. Fertility and Sterility Volume 101, Issue 5, Pages 1288-1293 (May 2014) DOI: 10.1016/j.fertnstert.2014.01.040 Copyright © 2014 American Society for Reproductive Medicine Terms and Conditions
Figure 1 Clinical and ongoing pregnancy rates of subjects with no P rise, or 2 day, 2 days, and 3 days of P rise. CPR = clinical pregnancy rate; OPR = ongoing pregnancy rate; P4 = progesterone. Fertility and Sterility 2014 101, 1288-1293DOI: (10.1016/j.fertnstert.2014.01.040) Copyright © 2014 American Society for Reproductive Medicine Terms and Conditions