A systematic review of internet-based information for individuals with Raynaud's phenomenon and patients with systemic sclerosis.

• Patients with SSc and RP are increasingly using internet/online sources of information and support. • RP represents an important opportunity for the early diagnosis of SSc. • The overall quality and readability of internet-based RP and SSc information is poor. • Internet-based RP and SSc information requires improvement to facilitate early diagnosis and inform shared decision-making.