Assessing diagnostic certainty for scurvy and rickets in human skeletal remains.

It is not the number of lesions that determines whether an individual is assigned to a particular diagnosis category, but rather the range and expression of lesions present. Avoiding a "tick-list" approach to core lesions of these diseases will be critical to ensure that identifying rickets and scurvy continues to contribute to understanding adaptations and variability among past communities. The framework allows more consistency in diagnostic certainty, facilitating greater comparability in research.