5306
This phase was accompanied by a similar dose - dependent stimulation of total inositol phosphate production and was assumed to be generated by release from intracellular stores of the endoplasmic reticulum ( ER ) .
 intracellular, endoplasmic reticulum, ER
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 intracellular, endoplasmic reticulum, ER