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Previous data suggested a subtle increase in serum P at the time of hCG injection without LH surge reduces the PR of women having oocyte retrievals for IVF ; this study compared PRs of recipients in a shared oocyte program according to the donors ' pre - hCG P level .
 GENE: hCG; GENE: LH; GENE: pre - hCG
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: hCG; GENE: LH; GENE: pre - hCG