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Several clinical studies in pregnancies complicated by inflammatory conditions such as preeclampsia and gestational diabetes support these findings , although further studies are required to determine the clinical relevance of the relationships between placental ABC transporter expression and activity , and placental function in stressed pregnancies .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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