Question: is this a 2) strong advice, 1) weak advice 0) no advice?

This decision was based on published evidence and related RCT studies using the HOOS questionnaire as the primary outcome measure (Ehrich et al 2000, Roos and Lohmander 2003, Terwee et al 2009, Roos 2012, Skou et al 2012, Villadsen et al 2014). 
user
This is no advice
assistant