Authors: P A Selwyn; D Hartel; V A Lewis; E E Schoenbaum; S H Vermund; R S Klein; A T Walker; G H Friedland Journal: N Engl J Med Date: 1989-03-02 Impact factor: 91.245
Authors: R L Stoneburner; D C Des Jarlais; D Benezra; L Gorelkin; J L Sotheran; S R Friedman; S Schultz; M Marmor; D Mildvan; R Maslansky Journal: Science Date: 1988-11-11 Impact factor: 47.728