Assertion: vitamin b12 | /r/HasProperty | claimed in english wikipedia articles
Facets:
value: on vitamin b12
type: OTHER
value: on pernicious anemia
type: LOCATION
Source sentences:
text: In the English Wikipedia articles on Pernicious anemia and Vitamin B12 it is claimed that it was Alexander R. Todd who - simultaneously with the American Karl Foster - first isolated vitamin B12 in 1948, while most other available sources say that it wasn't Todd, but the British Lester Smith, who worked at the same time for Glaxo Laboratories.