Original sentence: Some patients claim their memory is permanently impaired following ECT, while a few even report better memory afterwards.While clearly the exception rather than the rule, a number of rather vocal former psychiatric patients opposed to ECT claim that their memories were permanently and severely damaged by the procedure
Edited sentence: Some patients anecdotally claim their memory is permanently impaired following ECT, while a few even report better memory afterwards.While clearly the exception rather than the rule, a number of rather vocal former psychiatric patients opposed to ECT anecdotally claim that their memories were permanently and severely damaged by the procedure