8722
Mean + / - SD serum VEGF concentrations were significantly higher ( P < 0 . 001 ) in women with PCO and PCOS ( 3 . 4 + / - 0 . 7 and 3 . 2 + / - 0 . 66 ng / ml respectively ) compared with women with normal ovaries ( 2 . 3 + / - 0 . 5 ng / ml ) .
 GENE: serum VEGF
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: serum VEGF 
Answer:
 GENE: serum VEGF