Twin Births in the U.S. Are Dropping, and Experts Have a Theory

By CHRISTINE HAUSER from NYT Health https://ift.tt/2o5NRQo
via IFTTT Twin Births in the U.S. Are Dropping, and Experts Have a Theory CHRISTINE HAUSER Researchers believe that the decline may be connected to advances in embryo transfers during in vitro fertilization. https://ift.tt/2o5NRQo https://ift.tt/2ANceVu Health The New York Times October 4, 2019 at 07:00AM