N. Hoff

Serum concentration of 25-hydroxyvitamin D in rickets of extremely premature infants

S. Teitelbaum, W. Mcalister, J. Haddad, 1979 .

Mineral homeostasis in very premature infants: serial evaluation of serum 25-hydroxyvitamin D, serum minerals, and bone mineralization.

W. Mcalister, J. Haddad, L. Hillman, 1985, The Journal of pediatrics.

Serum concentrations of 25-hydroxyvitamin D in rickets of extremely premature infants.

S. Teitelbaum, W. Mcalister, J. Haddad, 1979, The Journal of pediatrics.

Serum calcitonin concentrations in premature infants during the first 12 weeks of life

J. Haddad, L. Hillman, J. Walgate, 1982, Calcified Tissue International.