Extract the most famous research of Mary Campbell Dawbarn, and put them in a list.

Mary Campbell "Mollie" Dawbarn (5 January 1902 – 24 May 1982) was an Australian biochemist and nutritional physiologist.[1] 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.

- Producing an assay for vitamin b12
- Perfecting the methods for estimating B1 vitamin in bread