instruction: Extract the most famous research of Mary Campbell Dawbarn, and put them in a list.
context: Mary Campbell "Mollie" Dawbarn (5 January 1902 – 24 May 1982) was an Australian biochemist and nutritional physiologist. She is particularly well known for here research on B complex vitamins. Producing an assay for vitamin b12 and perfecting the methods for estimating B1 vitamin in bread are among her most notable works.
response: - Producing an assay for vitamin b12
  - Perfecting the methods for estimating B1 vitamin in bread