A randomized controlled trial of the effect of fluid extract of Echinacea purpurea on the incidence and severity of colds and respiratory infections

A sharper Bonferroni procedure for multiple tests of significance

Yosef Hochberg · Biometrika · 1988 · 4.7K citations

Public Health, Biostatistics, Experimental Design +13

Plants Used against Cancer

Enrique Forero, Jonathan L. Hartwell · The Bryologist · 1989 · 377 citations

Medicine, Oncology, Plant Sciences +7

Macrophage Activation by the Polysaccharide Arabinogalactan Isolated From Plant Cell Cultures of Echinacea purpurea

Birgit Luettig, Christiane Steinmüller, George E. Gifford et al. · JNCI Journal of the National Cancer Institute · 1989 · 268 citations

Life Sciences, Cancer Biology, Immunology +17

In vitro effects of echinacea and ginseng on natural killer and antibody-dependent cell cytotoxicity in healthy subjects and chronic fatigue syndrome or acquired immunodeficiency syndrome patients

Darryl M. See, Nikki Broumand, Lisa Sahl et al. · Immunopharmacology · 1997 · 258 citations

Life Sciences, Immunology, Pharmacology +13

Macrophage activation and induction of macrophage cytotoxicity by purified polysaccharide fractions from the plant Echinacea purpurea

M Stimpel, A Proksch, H. Wagner et al. · Infection and Immunity · 1984 · 225 citations · Full text

Life Sciences, Cell Biology, Immunology +16