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Micelles of cetyltrimethylammonium bromide ( CTAB ) , when doped with increasing levels of 4 - ethylphenol , show microstructural transitions from spherical micelles to elongated wormlike micelles , disks , and subsequently to globular and then to tubular vesicles .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
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