1. Does the father matter? The association between the periconceptional paternal folate status and embryonic growth 
Jeffrey Hoek, M.D., Maria P.H. Koster, M.D., Ph.D., Sam Schoenmakers, M.D., Ph.D., Sten P. Willemsen, Ph.D., Anton H.J. Koning, Ph.D., Eric A.P. Steegers, M.D., Ph.D., Régine P.M. Steegers-Theunissen, M.D., Ph.D. 
Fertility and Sterility 
Volume 111, Issue 2, Pages (February 2019)
DOI: /j.fertnstert
Copyright © 2018 American Society for Reproductive Medicine Terms and Conditions

2. Figure 1
Flowchart of inclusions and exclusions of the study population, Rotterdam Periconception Cohort (Predict Study). IVF, in vitro fertilization; ICSI, intracytoplasmic sperm injection.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2018 American Society for Reproductive Medicine Terms and Conditions

3. Figure 2
Embryonic growth trajectories in the spontaneously conceived pregnancy group for crown–rump length (CRL) and embryonic volume (EV). Third quartile (Q3, green line) versus Q1, Q2, and Q4 (blue, red, and purple lines, respectively) are depicted, including the absolute and relative differences at 7 and 11 weeks of gestational age. *Statistically significantly different compared with Q3 (P<.05).
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2018 American Society for Reproductive Medicine Terms and Conditions