159935
William Ratliff is a research fellow and curator of Americas Collection at Stanford University 's Hoover Institution , specializing in Latin America , China , and U.S. foreign policy .
 Ratliff, Stanford University, Hoover Institution, Latin America, China
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ratliff, Stanford University, Hoover Institution, Latin America, China