JACKSONVILLE, Fla. (AP) — One of the formerly conjoined twin boys born in Jacksonville last year has been discharged from Wolfson Children's Hospital and transferred to Brooks Rehabilitation, where he'll receive inpatient physical therapy, officials said.

Conner Mirabal left the hospital Monday, while his brother, Carter Mirabal, will remain at there for at least a few more months, the Florida Times-Union reported (http://bit.ly/1NkBtuO ).

Both boys have been hospitalized since they were born Dec. 12, 2014. Hospital officials said the twins were born conjoined from the sternum to the lower abdomen by tissue. Shortly after their birth, they were transported to Wolfson for the first of multiple surgeries, including the final separation May 7.

According to a news release from Wolfson and Nemours Children's Specialty Care, since then, Conner Mirabel has been "growing and thriving" with the help of a feeding tube. Carter Mirabel, the smaller twin, who has had a slower recovery, is expected to receive a feeding tube soon and may also require therapy at Brooks before going home.

"We are so excited that we are one step closer to getting our babies home," their mother, Michelle Brantley, said Monday. "Carter and Conner are miracle babies. We are blessed to be their parents."

Daniel Robie, chief of pediatric general surgery at Nemours Children's Specialty Care and Wolfson, said both twins are doing remarkably well.

"The team has grown very close to the boys and their family, but we are looking forward to the news that they are home and thriving, and living the normal lives we expect them to have," Robie said.

Conjoined twins are extremely rare, ranging from one in every 100,000 births to one in every 200,000 births.

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Information from: The (Jacksonville) Florida Times-Union, http://www.jacksonville.com