1412
Healthy preterm infants of gestational age 26 - 29 weeks showed a ' mature ' pattern of permeability at birth , followed by a temporary period of enhanced permeability after 3 - 4 weeks of life .
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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:
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