4577
Neonates showing a severe clinical phenotype , analogous to the early neonatal lethal disease occurring in mice homozygous for a null allele produced by targeted disruption of GBA , have been described elsewhere , but the specific mutations in these cases have not yet been characterized .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
 Entities:  
Answer:
 None