“…In most instances, those reports reflect data obtained from users of parenterally administered drugs, most commonly the opiates and usually heroin. Commonly reported disorders include AIDS (Barone et al, 1990;Waterson, 1983) and hepatitis or other liver diseases (Webster et al, 1977;White, 1973;Cherubin et al, 1976). Other infections are common, to include pulmonary disease, skin infections, venereal diseases, and infective endocarditis (Scheutz, 1986b;Webster et al, 1977;Davis et al, 1983;Ayer and Cutright, 1974;Briggs et al, 1967).…”