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Problems relating to the technology of a phospholipid preparation from natural materials , liposome production , and studies into the mechanisms of interaction between metal ( trace elements ) cations and model bilayer lipid membranes are discussed .
 Anatomy: liposome; Anatomy: bilayer lipid membranes
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: liposome; Anatomy: bilayer lipid membranes