In fully resected oral scc pts with high risk factors that does not cross midline, would you radiate the contralateral neck if it is pN0?

I had responded to a similar question some time ago. I am copying my response below.

I do not feel comfortable omitting RT to the neck in cases of oral tongue cancer. The lymphatic drainage of the oral tongue is complex. The textbook on Head and Neck cancer by Million and Cassisi (2nd ed., Figure 16...