Brisbane premature baby defies odds to celebrate birthday
![Brisbane premature baby defies odds to celebrate birthday](http://i.dailymail.co.uk/i/pix/2017/11/10/06/463147FF00000578-0-image-a-172_1510295044345.jpg)
Little Billie Ava Stevens, from Brisbane, who was born prematurely at 25 weeks weighing a tiny 510 grams has defied the odds to celebrate her first birthday.
Little Billie Ava Stevens, from Brisbane, who was born prematurely at 25 weeks weighing a tiny 510 grams has defied the odds to celebrate her first birthday.