4323
Administration of the dopamine agonist bromocriptine ( 2 . 5 mg three times a day for 4 days ) suppressed ( P less than 0 . 01 ) mean 24 - h plasma 18 - OHB levels from 21 . 9 + / - 2 . 0 to 14 . 8 + / - 1 . 4 ng / dl .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
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