2345
The marked induction of angiogenesis in glioblastomas suggests that it is a necessary part of malignant progression ; however , the precise molecular mechanisms underlying the regulation of brain tumour growth and angiogenesis remain unresolved .
 glioblastomas, brain tumour
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 glioblastomas, brain tumour