3323
The effect of taxol , cobalt chloride and a heparin - steroid combination was tested in the fat tissue assay and compared to the validated human placental vein angiogenesis model ( HPVAM ) .
 fat tissue, placental vein
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 fat tissue, placental vein