8439
The patient underwent two intracytoplasmic sperm injection cycles with thawed epididymal spermatozoa , in which , due to a pharmacist ' s mistake , ovarian stimulation was carried out by a combination of long - acting gonadotrophin - releasing hormone agonist ( leuprolide depot ) and gonadotrophins .
 gonadotrophin - releasing hormone, gonadotrophins
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 gonadotrophin - releasing hormone, gonadotrophins