Assertion: person's exposure | /r/CapableOf | occur before the outcome
Facets:
Source sentences:
text: The limitations are the difficulties in establishing that the exposure actually occurred before the outcome (temporality), obtaining accurate information about exposure to a causative agent which has occurred in the past (relies on accuracy of people's memory or on completeness and accuracy of medical records), and identifying a control group that is similar in all other factors that may have influenced the outcome.