To assess persistence of CT-P13 in patients with Rheumatoid Diseases (Rheumatoid arthritis [RA], ankylosing spondylitis [AS], and psoriatic arthritis [PsA]) who are naïve to biologics or are switching from stable Remicade to CT-P13. The main objectives of the study are:||To evaluate real-life drug persistence in RA, AS, and PsA patients who are either initiated with CT-P13 as their first biologic, or who are switched from stable Remicade|To characterise the patient populations and drug usage patterns of RA, AS, and PsA patients who are either initiated with CT-P13 as their first biologic, or who are switched from stable Remicade|To assess the safety of CT-P13 in RA, AS, and PsA patients who are either initiated with CT-P13 as their first biologic, or who are switched from stable Remicade for up to 2 years