Judy C. Helgen

Hind limb malformations in free-living northern leopard frogs (Rana pipiens) from Maine, Minnesota, and Vermont suggest multiple etiologies

Carol U. Meteyer, Ivonne Loeffler, John F. Fallon et al. · Teratology · 2000 · 91 citations

Strategies for assessing the implications of malformed frogs for environmental health.

James G. Burkhart, Gerald T. Ankley, Heidi Bell et al. · Environmental Health Perspectives · 2000 · 90 citations · Full text

Biology, Biomagnification, Ecotoxicity +13

Induction of mortality and malformation in Xenopus laevis embryos by water sources associated with field frog deformities.

James G. Burkhart, Judy C. Helgen, Douglas J. Fort et al. · Environmental Health Perspectives · 1998 · 80 citations · Full text

Xenopus Embryos, Anatomy, Reproductive Biology +24

Effects of pond water, sediment, and sediment extracts from minnesota and vermont, USA, on early development and metamorphosis of xenopus

Douglas J. Fort, Timothy L. Propst, Enos L. Stover et al. · Environmental Toxicology and Chemistry · 1999 · 59 citations

PROGRESS TOWARD IDENTIFYING CAUSES OF MALDEVELOPMENT INDUCED IN <i>XENOPUS</i> BY POND WATER AND SEDIMENT EXTRACTS FROM MINNESOTA, USA

Douglas J. Fort, Robert L. Rogers, Holly F. Copley et al. · Environmental Toxicology and Chemistry · 1999 · 48 citations

Xenopus Laevis, Biomagnification, Comparative Toxicology +20