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Please especially note Assumptions 7 thru 9, which discuss the concept of "conditional branching", and Example 1, which shows an example of data not done due to conditional branching in the electronic version of the PRO-CTCAE. Conditional branching replaces the concept of logically skipped items as it allows for situations such as in the electronic version of the PRO-CTCAE where items can be not done due to conditional branching so there is no original result. However, in . In this case NIH provides scoring for those items not done due to conditional branching. Since it is known that the items were not done due to the symptom not occurring (e.g., when the frequency item response is "never"), any remaining items for the symptom are provided a standardized score of "None" or "Not at all", with a numeric value of 0.