Probably related adverse event An adverse event that is lesser known or suspected effect of the drug, device, or procedure (listed in the protocol documents including IB, consent, publications, etc.) follows a reasonable sequence of time from the drug’s administration, device implantation, activation, or procedure, for which the event may be attributed to the administration, implantation, activation, or procedure ceases or diminishes with discontinuation of the drug, removal/discontinued activation of the device, or procedure