A research study designed to answer specific questions about a particular disease. The process of identifying a disease by its characteristic signs, symptoms, and laboratory findings. The determination and regulation of the size, frequency, and amount of an agent or medication. Criteria that must be met prior to patient entry onto a study. One of the female sex hormones produced mainly by the ovaries.
Males also produce estrogen, but in much smaller quantities.
Estrogen is responsible for the development of the female secondary sex characteristics and also has a major role in the menstrual cycle. Inflammation or swelling of the liver. A collaboration of cooperative groups in order to conduct clinical trials. Cancerous - abnormal uncontrolled growth of tissue. An aggressive type of skin cancer.