878
The hemoglobin concentration in patients with > or = 2 g / dL decrease at week 2 was observed to be significantly lower even after week 2 than in patients with < 2 g / dL decrease ( P < 0 . 01 ) .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 None