Experts suspect the decline probably stems from improved techniques for assisted reproduction.
from WebMD Health https://www.webmd.com/balance/news/20191003/twins-are-becoming-less-common-in-us?src=RSS_PUBLIC
Friday, October 4, 2019
Twins Are Becoming Less Common in U.S., for Good Reasons
from WebMD Health https://www.webmd.com/balance/news/20191003/twins-are-becoming-less-common-in-us?src=RSS_PUBLIC
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