2267
Although no difference was found in predominant orientation , shape differences were found ; with the combined anterior and posterior regions having more elongated ( p = 0 . 004 ) and flattened ( p = 0 . 045 ) lacunae , than those of the medial and lateral regions .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None