3499
Mean CD4 percentages were lower postpartum ( 21 . 9 + / - 3 . 4 ) than prepartum ( 45 . 1 + / - 6 . 7 ) in all five patients studied , although proliferative responses to the mitogens phytohemagglutinin and pokeweed were unchanged during the study period .
 GENE: CD4; GENE: mitogens phytohemagglutinin and pokeweed
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: CD4; GENE: mitogens phytohemagglutinin and pokeweed