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referanser

5. McCance RA, Sheldon W, Widdowson EM. Bone and vegetable broth. Arch Dis Child. 1934 Aug 1;9(52):251–8.

6. Hsu D-J, Lee C-W, Tsai W-C, Chien Y-C. Essential and toxic metals in animal bone broths. Food Nutr Res. 2017;61(1):1347478.

7. Rosen HN, Salemme H, Zeind AJ, Moses AC, Shapiro A, Greenspan SL. Chicken soup revisited: calcium content of soup increases with duration of cooking. Calcif Tissue Int. 1994 Jun;54(6):486–8.

9. Hopkins AB. Chicken soup cure may not be a myth. Nurse Pract Seattle. 2003;28(6):16.