1. From various letters to Ellen, myself, and several friends.
2. Marie Krogh & Anna-Louise Lindberg: The effect of active thyroid substance on metabolism and other functions in guinea pigs. (Acta Physiol. Scand., 10, 1945 ).
3. AK to Cecil Drinker, Nov. 1944.
4. AK to Lindberg, Nov. 25, 1944.
5. Lindberg to AK, Dec. 5, 1944.