1532
In these HPMA copolymers , DOX was covalently bound via peptide linkages that were either non - biodegradable ( Gly - Gly ) or degradable by lysosomal proteinases ( Gly - Phe - Leu - Gly ) .
 Chemical: HPMA; Chemical: DOX; Chemical: Gly - Phe - Leu - Gly
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: HPMA; Chemical: DOX; Chemical: Gly - Phe - Leu - Gly