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

Children 5 years or older who are expected to experience moderate to severe pain for at least 24 hours can benefit from PCA analgesia; it can also be safely used for younger children with the assistance of nurses or family members educated on the use of PCA (Anghelescu, Burgoyne, Oakes, & Wallace, 2005; Chiaretti & Langer, 2005; Kost-Byerly, 2002; Wuhrman et al., 2007). 
user
This is a weak advice
assistant