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By fusing lymphoblastoid cells of an AGS patient that exhibited a microdeletion in the short arm of Chr 20 encompassing bands p11.23 to p12.3 with rodent thermosensitive mutant cells ( CHOtsH1-1 ) deficient in-leucyl-tRNA synthetase , we isolated a somatic cell hybrid segregating the deleted human Chr 20 .
 Chr 20, short arm of Chr 20, Chr 20, somatic cell hybrid, rodent thermosensitive mutant cells, in-leucyl-tRNA synthetase, p11.23 to p12.3, CHOtsH1-1, lymphoblastoid cells
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 Chr 20, short arm of Chr 20, Chr 20, somatic cell hybrid, rodent thermosensitive mutant cells, in-leucyl-tRNA synthetase, p11.23 to p12.3, CHOtsH1-1, lymphoblastoid cells