Final answer:
The NCDB specifies when cases should be submitted in the Call for Data, which is used for retrospective analysis and predicting disease trends.
Step-by-step explanation:
The question asks about the timing for when cases should be submitted to the National Cancer Data Base (NCDB). Submission details, such as timing, are typically specified in the Call for Data issued by NCDB. Cases submitted to NCDB are utilized for retrospective analysis and can aid in predicting trends in disease occurrence within populations by analyzing data across different times and locations.