multivesicular bodies with clear vesicles which are interpreted as glutaraldehyde artefacts were found but no clear neurosecretory vesicles were found in any a cells -- etorphine at 10 ( -6 ) m for 48 hours and naloxone 10 ( -4 ) m were employed to product dependence and precipitated abstinence but no clear cut morphologic differences were noted between control , opiate dependent and precipitated abstinent cells .
C0230825
multivesicular bodies
C0007634
cells