Center for Substance Abuse Research Center for Substance Abuse Research LSD, also known as acid Center for Substance Abuse Research Center for Substance Abuse Research http://www.cesar.umd.edu/cesar/drugs/lsd.asp LSD this drug was originally legal in the United States http://www.cesar.umd.edu/cesar/drugs/lsd.asp Center for Substance Abuse Research CESAR http://www.cesar.umd.edu/cesar/drugs/lsd.asp http://www.cesar.umd.edu/cesar/drugs/lsd.asp http://www.cesar.umd.edu/cesar/drugs/lsd.asp LSD. Center for Substance Abuse Research the original Center for Substance Abuse Research LSD. http://www.cesar.umd.edu/cesar/drugs/lsd.asp