Limitations
Several limitations of this study should be noted. First, it is very
difficult to conduct a rigorous randomized observational survey. There
is unavoidable selection bias in this study. Second, the survey may have
been subject to bias ascertainment as only university affiliated
hospitals and university teaching hospitals were selected, making it
likely that the degree of neuroprognostication awareness and practice
reflected in our survey is an optimistic perspective. The true
proportion may be lower than that reported in this study.