An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Linn S, Fulwood R, Carroll M, Brook JG, Johnson C, Kalsbeek WD, Rifkind BM.Linn S, et al. Among authors: rifkind bm.Am J Public Health. 1991 Aug;81(8):1038-43. doi: 10.2105/ajph.81.8.1038.Am J Public Health. 1991.PMID: 1853996Free PMC article.
Carroll M, Sempos C, Fulwood R, Bachorik PS, Rifkind B, Lippel K, Johnson C.Carroll M, et al.Vital Health Stat 11. 1990 Aug;(240):1-65.Vital Health Stat 11. 1990.PMID: 1700545Free article.
Chambless LE, Fuchs FD, Linn S, Kritchevsky SB, Larosa JC, Segal P, Rifkind BM.Chambless LE, et al. Among authors: rifkind bm.Am J Public Health. 1990 Oct;80(10):1200-4. doi: 10.2105/ajph.80.10.1200.Am J Public Health. 1990.PMID: 2400030Free PMC article.
Johnson CL, Rifkind BM, Sempos CT, Carroll MD, Bachorik PS, Briefel RR, Gordon DJ, Burt VL, Brown CD, Lippel K, et al.Johnson CL, et al. Among authors: rifkind bm.JAMA. 1993 Jun 16;269(23):3002-8.JAMA. 1993.PMID: 8501842
Pekkanen J, Linn S, Heiss G, Suchindran CM, Leon A, Rifkind BM, Tyroler HA.Pekkanen J, et al. Among authors: rifkind bm.N Engl J Med. 1990 Jun 14;322(24):1700-7. doi: 10.1056/NEJM199006143222403.N Engl J Med. 1990.PMID: 2342536Free article.