Kasper K., Broderson M., Schedel R.: Concentration of vitamin A, retinol binding protein and prealbumin in serum in response to stress. Acta Hep-Gastroenterol22:403, 1975
2.
Toro G., Ackermann PG: Practical Clinical Chemistry. Little, Brown & Co, Harpers Ferry, WV, 1975, p 634
3.
Sauberlich HE, Dowdy RP, Skala JH: Laboratory Tests for the Assessment of Nutritional Status. CRC Press, Cleveland, OH, 1974, p 16
