Jill A. Helms

Sonic hedgehog participates in craniofacial morphogenesis and is down-regulated by teratogenic doses of retinoic acid.

G. Eichele, C. Thaller, D. Hu, 1997, Developmental biology.

The role of sonic hedgehog in normal and abnormal craniofacial morphogenesis.

D. Hu, J. Helms, J. Helms, 1999, Development.

From head to toe: conservation of molecular signals regulating limb and craniofacial morphogenesis

D. Hu, J. Helms, R. Schneider, 1999, Cell and Tissue Research.

Genetic and teratogenic approaches to craniofacial development.

D. Hu, J. Helms, D. L. Young, 2000, Critical reviews in oral biology and medicine : an official publication of the American Association of Oral Biologists.