Finkelstein EA, Mansfield C, Wood D, Rowe B, Chay J, Ozdemir S. Trade-offs between civil liberties and national security: a discrete choice experiment. Contemp Econ Policy. 2017 Apr;35(2):292-311. doi: 10.1111/coep.12188
Dysktra LA, Granger AL. Interactions between the delta agonist SNC80, and the mu agonists, morphine, buprenorphine, and butorphanol in squirrel monkeys. Nida Res Monogr. 2000;180:65.
Gfroerer J, Lessler J, Parsley (Edwards) T. Studies of nonresponse and measurement error in the national household survey on drug abuse. Nida Res Monogr. 1997;167:273-95.