"RAR" also stands for the Relationships Among Rivals framework used in political science and process-tracing research [2]. Where to Find the Actual Paper
: The world's largest collection of open-access research papers [5]. Uk-Su-An.rar
The "An" and "RAR" suffix could point toward biological research into Retinoic Acid Receptors [1]. Detailed papers on this topic cover the structural and physiological effects of RARs and their cooperation with retinoid X receptors (RXRs). "RAR" also stands for the Relationships Among Rivals
Knowing if it originated from a specific university department , financial institution , or medical database would help in locating the exact "detailed paper" you need. Uk-Su-An.rar