1 Editor-in-Chief, Lymphatic Research and Biology (2002 - Present) 2  Chair, Scientific Advisory Committee, Lymphatic Research Foundation (1999 - Present) 3  Director, Stanford Center for Lymphatic and Venous Disorders, Stanford University (2000 - Present) 4  Chief of Consultative Cardiology, Stanford University (1997 - Present)
A BDSM-style collar that buckles in the back. Detail of collar showing D-rings. In a BDSM context, a collar is a device of any material worn by a person around the neck to indicate their submissive or slave status in a BDSM relationship. A person wearing a collar to symbolize their relationship with another is said to be collared.
BDSM has become an umbrella term for certain kinds of erotic behavior between consenting adults. There are various subcultures under this umbrella term and distinct differences between these subcultures.