What does VR4 stand for?

MLA style: "VR4." Acronym Finder . 2013. AcronymFinder.com 25 May. 2013 http://www.acronymfinder.com/Variable-Ratio-4-(psychiatry)-(VR4).html
Chicago style: Acronym Finder . S.v. "VR4." Retrieved May 25 2013 from http://www.acronymfinder.com/Variable-Ratio-4-(psychiatry)-(VR4).html
APA style: VR4. (n.d.) Acronym Finder. (2013). Retrieved May 25 2013 from http://www.acronymfinder.com/Variable-Ratio-4-(psychiatry)-(VR4).html

Variable Ratio 4 (psychiatry)

This definition appears very rarely and is found in the following Acronym Finder categories:

Other Resources:

<< Previous	Abbreviation Database Surfer		Next >>
Virtual Reality - Immersive Projection Technology Symposium Variable-Rate Multi-Modal Speech Coder Virtual Reality/Augmented Reality Vertical Replication coupled with Horizontal Expansion Variability Reduction/Statistical Process Control Vanilloid Receptor Subtype 1 (nociceptor of sensory neurons) Variable Region 1 Variable Ratio 2 (psychiatry) variable ratio three Variable Region 3		Variable Region 5 Versetzt Reihe 6 (German, Volkswagen engine) Rough Airspeed (aviation) Vacation Rental Advertising (various locations) Validated Requirements Authority Vampire Rights Amendment (True Blood; TV show) Varadero, Cuba - Juan Gualberto Gomez (Airport Code) Variable Rate Application Variable Rate Audio Vegetable Rights Association