On the benefit of assisted reproduction techniques, a comparison of the USA and Europe.
Nygren
K
K
Andersen
A Nyboe
AN
Felberbaum
R
R
Gianaroli
L
L
de Mouzon
J
J
D015925:Cryopreservation; D004624:Embryo Transfer / Q000706:statistics & numerical data*; D005060:Europe; D005260:Female; D006801:Humans; D011247:Pregnancy; D018873:Pregnancy Rate; D011272:Pregnancy, Multiple; D027724:Reproductive Techniques, Assisted / Q000706:statistics & numerical data*; D014481:United States