RT Journal Article SR Electronic T1 Umbilical cord stem cell therapy for bronchopulmonary dysplasia: ready for prime time? JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 402 OP 404 DO 10.1136/thoraxjnl-2012-202661 VO 68 IS 5 A1 Christopher D Baker A1 Steven H Abman YR 2013 UL http://thorax.bmj.com/content/68/5/402.abstract AB