Haydee Ibarra, 22, covers her daughter Melinda Star Guido with her blanket as they leave LAC+USC Medical Center in Los Angeles on January 20, 2012. Melinda Star Guido, the third smallest baby born in the world, was born on August 30, 2011 and weighing only 9.5 ounces. – AFP Photo / Christina HOUSE / Los Angeles Times

LOS ANGELES: A baby believed to be the third smallest birth-weight infant ever to survive left hospital in Los Angeles on Friday, doctors and the proud parents said.

Melinda Star Guido was born last August, 16 weeks early, weighing only 9.5 ounces (270 grammes)– less than a can of soda or the same as two iPhones — and has spent nearly five months in a neonatal intensive care unit.

“I am so excited to finally have my baby come home,” said her mother Haydee Ibarra, 22. “We have waited almost five months for this moment. It is so wonderful and we are ready to bring Melinda home.”She is the third smallest baby to survive, according to Global Birth Registry figures cited by LA County health officials.

Dr Rangasamy Ramanathan, neonatology chief at the LA County-USC Medical Center, said he wasn’t initially sure if Melinda was going to survive beyond a few days.

“This doesn’t happen every day. In my 30 years here, … this is the first time it ever happened that we were able to discharge a baby who weighed less than 400 grams, or 300 grams,” he said.

“We have reached a milestone by being able to see Melinda go home,” he added “We are hopeful to see many more milestones accomplished in Melinda’s development as we follow her care over the next six years.”