For more details on the discovery, extraction, purification, clinical use, and synthesis of insulin, see Insulin

1921 Research on the role of pancreas in the nutritive assimilation
1922 Frederick Banting, Charles Best and James Collip use bovine insulin extract in humans at Connaught Laboratories in Toronto, Canada. 1922 Leonard Thompson becomes the first human to be treated with insulin. 1922 James D. Havens, son of former congressman James S. Havens, becomes the first American to be treated with insulin. 1922 Elizabeth Hughes Gossett, daughter of the U.S. Secretary of State, becomes the first American to be (officially) treated in Toronto. 1923 Eli Lilly produces commercial quantities of much purer bovine insulin than Banting et al.
Vestura is a monotypic moth genus of the family Erebidae erected by Charles Swinhoe in 1904. Its only species, Vestura minereusalis, was first described by Francis Walker in 1859. It is found in Borneo, Sumatra and Singapore. == References ==