References
- Sells S. B., Chatham L. R., Retka R. L. A study of differential death rates and causes of death among 9276 opiate addicts during 1970-1971. Contemp. DrugProb. 1972; 1(4)665–706
- Watterson O., Sells S. B., Simpson D. D. Death rates and causes of death among opiate addicts in the DARP during 1971-1972. Studies of the Effect-ness of Treatment for Drug AbuseVol. 2, Research of Patients, Treatments and Outcomes, S. B. Sells. Ballinger Press, Cambridge, Mass 1974
- Watterson O., Sells S. B., Simpson D. D. Death rates and causes of death for opiate addicts in treatment during 1972-1973, IBR Rept. 74-11. Texas Christian Univ. 1974
- Baden M. M. Narcotic abuse: A medical examiner's view. N. Y. State J. Med. 1972; 72(7)834–840
- Louria D. B., Hensle T., Rose J. The major medical complications of heroin addiction. Ann. Intern. Med. 1967; 67(1)1–22
- Statistical Abstract of the United States-1973. Dept. of Commerce, Bureau of the Census. U.S. Government Printing Office, Washington, D.C. 1973