Medicinal Uses of Calendula

What are the medicinal uses for Calendula?
I know it is used in making soothing balms as for chapped lips, mild burns and such but can it be taken internally and for what ailments?

Thomas Bartram, in his book "Bartram's Encyclopedia of Herbal Medicine" (available at Richters) lists the actions of calendula as: immune stimulant, anti-protozoa, anti-inflammatory, anti-fungal, anti-spasmodic, anti-hemorrhage, anti-histamine, anti-bacterial effect particularly against staphylococcus and streptococcus, anti-emetic, anti-cancer, antiseptic, styptic, hemostatic, diaphoretic, anthelmintic, estrogenic activity (extract from fresh flowers), menstrual regulator.
Bartram lists internal uses as: a remedy to follow all operations, enlarged and inflamed lymphatic glands, gastric and duodenal ulcer, jaundice, gall bladder inflammation, absent or painful menstruation, balanitis (inflammation of head of penis), inflammation of rectum, gum disease, nose bleeds, sebaceous cysts, measles, pneumonia - a cooling drink which is anti-inflammatory, vaginal thrush.