2045
Several essential neurodevelopmental processes , including proliferation , migration , differentiation , formation of axons and dendrites , synaptogenesis , and apoptosis , are already being evaluated in vitro using biochemical and morphological endpoints .
 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