The "green" cluster is the most isolated and is represented by King Saud University (Saudi Arabia), Amity University (India), and Aligarh Muslim University (India). It has links only with the "blue" cluster, which includes Jamia Hamdard (India), Panjab University (India), and International Medical University (Malaysia). The "purple" cluster is composed of Tehran University of Medical Sciences (Iran) and Tabriz University of Medical Sciences (Iran). The "yellow" cluster is formed by the National Center for Nanoscience and Technology (China) and the University of Chinese Academy of Sciences (China).