J. Pickup

Theoretical considerations in stable isotope dilution mass spectrometry for organic analysis

K. McPherson, J. Pickup, 1976 .

Assessment of the Reference Method for determination of total calcium in serum.

E. M. Price, S. Brown, J. Pickup, 1974, Clinical chemistry.

Intra-individual variation of some serum constituents and its relevance to population-based reference ranges.

E. K. Harris, S. Brown, J. Pickup, 1977, Clinical chemistry.

Use of the reference method for determination of serum calcium in a quality-assurance survey.

E. M. Price, M. Healy, S. Brown, 1975, Clinical chemistry.