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Our work aimed to explore the transport mechanism of the antiretroviral lamivudine ( deoxycytidine nucleoside analogue ) , using a three - part strategy : in vitro , an ex vivo and an in situ method , represented by PAMPA , rat jejunum patches and rat Single Pass Intestinal Perfusion ( SPIP ) , respectively .
 Chemical: lamivudine; Chemical: deoxycytidine nucleoside
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: lamivudine; Chemical: deoxycytidine nucleoside