Given an abstract, generate a keyword (a noun phrase) that best describes the focus or contribution of the paper. Such keywords can be directly from the given abstract or outside it.
Q: Abstract: Rehabilitation of the patient with arthritis is a multifaceted process that should always involve patient, family, and a wide variety of healthcare professionals and community organizations. The optimal goal is to improve the patient's functional performance. Success depends on correct identification of functionally limiting problems.
A: 
Anti-Inflammatory Agents, Non-Steroidal