- Linkage of the angiotensinogen gene locus to human essential hypertension in African Caribbeans. Caulfield, M., Lavender, P., Newell-Price, J., Farrall, M., Kamdar, S., Daniel, H., Lawson, M., De Freitas, P., Fogarty, P., Clark, A.J. J. Clin. Invest. (1995)