RT Journal Article SR Electronic T1 A surviving baby born 24 weeks of gestational age and 490g weight without mechanic ventilation and surfactant replacement JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 1504 OP 1505 VO 25 IS 10 A1 Akcam, Mustafa YR 2004 UL http://smj.org.sa/content/25/10/1504.abstract AB