APPROPRIATE METHODS AND TIMING OF SURGERY FOR NEONATES WITH SEVERE CONGENITAL DIAPHRAGMATIC HERNIA. Lishuang Ma, Jingna Liu, Chao Liu, Yandong Wei, Cuizhu Feng, Ying Wang, Yue Zhang, Yanxia Zhang, Bin Sun; Capital Instiute of Pediatrics, Peking UniversityTeaching Hospital