Results In 96 cases, 24 cases are hemorrhagic diseases of newborn (25%), 5 cases have necrotizing enterocolitis (5.2%), 67 cases have stress ulcer (69.8%).

• 结果96例中新生儿出血症24例(25%25)，坏死性小肠结肠炎5例(5.；2%25)，应激性溃疡67例(69