19704
Platelet aggregation and redox status were investigated in 5 patients with abetalipoproteinemia ( ABLP ) or homozygous hypobetalipoproteinemia , two rare metabolic diseases characterized by the absence of apolipoprotein B - containing lipoproteins , compared to 5 control subjects .
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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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