7699
Of the remaining 55 papers , some can be criticized for having no statistical analysis ; some for using only a single dose of steroid ; others for having irregular dose - response curves ; 40 out of the 55 for not replicating the treatments ; and 50 out of 55 for having no within - study repetition .
 steroid
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 steroid