TY  - RPRT
TI  - Reference range for serum cortisol in well preterm infants.
AU  - M Heckmann
AU  - S A Wudy
AU  - D Haack
AU  - F Pohlandt
PY  - 1999
DO  - 10.1136/fn.81.3.f171
UR  - https://pubmed.ncbi.nlm.nih.gov/10525017/
ID  - 10525017
ER  -