18345
Birth and early life stages are critical periods characterized by severe alterations of the redox balance and by " physiological " genomic changes in lung cells , which may be responsible for cancer and other diseases in adulthood .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None