1468
METHODOLOGY : A case control study of survivors with gestational age ( GA ) < 28 weeks or birthweight ( BW ) < 1000 g using data collected prospectively in our Neonatal Intensive Care Unit database .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 None