Daily Mail - Mother gives birth to one-in-500,000 quadruplets, including three identical boys

A mother has given birth to a rare set of quadruplets in which three of the four boys are identical, it was revealed today.
The boys were born 11 weeks premature in January having already survived odds of one in 500,000 to leave their mother's womb alive.
Their parents plan to introduce themselves and their babies at a news conference later today.

There are fewer than 100 documented cases of "identical triplets plus one" in the United States, hospital officials said.
Two embryos were implanted into the mother, and both were fertilized, hospital spokesman Michael Schwartzberg said.
One of them split, then split again, creating the identical triplets.
The boys were delivered by Caesarian section January 29, on their mother's 32nd birthday, at Baltimore Medical Centre in Towson, Maryland.
Joshua Drew was born first, then Gavin Michael, Cody Benjamin and finally Logan Christopher, the non-identical one.
The babies were treated at the hospital's neonatal intensive care unit, and all four have been home in Belcamp, Maryland, about two-and-a-half weeks weeks.