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Table 1 Time Schedule

From: Effectiveness of adjuvant radiotherapy in patients with oropharyngeal and floor of mouth squamous cell carcinoma and concomitant histological verification of singular ipsilateral cervical lymph node metastasis (pN1-state) - A prospective multicenter randomized controlled clinical trial using a comprehensive cohort design

Start -> Start of recruitment phase (presumably Sep. 2009)
End of year 1 -> Intermediate assessment of recruitment level:
     - If fraction of randomized patients <5% of total count: ongoing recruitment, else abortion of randomization
End of year 2 -> Second intermediate assessment of recruitment level:
     - If fraction of randomized patients <10% of total count: ongoing recruitment, else abortion of randomization
End of year 4 -> End of recruitment phase
     -
Year 5+6 -> Follow-up
Year 7+8  
Year 9  
End of year 9 -> End of Follow-Up
  -> Final analysis of the primary clinical endpoint: Evaluation of the overall-survival
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