Ralph I. Horwitz

Randomized, Controlled Trials, Observational Studies, and the Hierarchy of Research Designs

John Concato, Nirav R. Shah, Ralph I. Horwitz · New England Journal of Medicine · 2000 · 3.5K citations · Full text

Public Health, Clinical Sciences, Clinical Epidemiology +11

A Multifactorial Intervention to Reduce the Risk of Falling among Elderly People Living in the Community

Mary E. Tinetti, Dorothy I. Baker, Gail McAvay et al. · New England Journal of Medicine · 1994 · 2.2K citations

Medicine, Geriatric Medicine, Preventive Medicine +13

The Use of β-Agonists and the Risk of Death and near Death from Asthma

Walter O. Spitzer, Samy Suissa, Pierre Ernst et al. · New England Journal of Medicine · 1992 · 1.2K citations · Full text

Medicine, Internal Medicine, Pharmacology +9

A Clinical Trial of Estrogen-Replacement Therapy after Ischemic Stroke

Catherine M. Viscoli, Lawrence Brass, Walter N. Kernan et al. · New England Journal of Medicine · 2001 · 921 citations · Full text

Medicine, Endocrinology, Neurology +12

Phenylpropanolamine and the Risk of Hemorrhagic Stroke

Walter N. Kernan, Catherine M. Viscoli, Lawrence Brass et al. · New England Journal of Medicine · 2000 · 773 citations · Full text

Medicine, Pharmacology, Neuropharmacology +5