17386
In the event that oocyte donation and adoption are not available and / or various treatments with intensive ovulation induction have been unsuccessful , close and continuous monitoring of follicle growth to identify very rare ovulatory events might be considered for patients with POI and desired fertility .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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