Formula Authors & Research History

Leslie Chalmers was a clinical chemistry researcher at the William Pepper Laboratory, Division of Chemistry, Hospital of the University of Pennsylvania. Chalmers co-authored the 1975 Clinical Chemistry paper with William V. Dorwart that compared 13 approaches to calculated serum osmolality and evaluated how closely calculated values agreed with measured osmolality.

William V. Dorwart was a clinical chemistry researcher at the William Pepper Laboratory, Division of Chemistry, Hospital of the University of Pennsylvania. With Leslie Chalmers, he published a 1975 Clinical Chemistry study comparing multiple methods for calculating serum osmolality from measured chemical concentrations. The study analysed 715 hospital-patient serum samples and proposed an equation that closely matched measured osmolality.

Michael Emmett, MD, MACP, is a nephrologist and medical educator whose work has focused on acid-base disorders, fluid and electrolyte physiology, mineral metabolism and kidney disease. He is Chief of Internal Medicine Emeritus at Baylor University Medical Center. In 1977, with Robert G. Narins, he published the influential review “Clinical use of the anion gap,” which helped establish the anion gap as a practical framework for evaluating acid-base disorders; the paper did not invent the underlying arithmetic.

Chester M. Edelmann Jr., MD (1930–2013), was a leading figure in paediatric nephrology and served at Albert Einstein College of Medicine, where he became Senior Associate Dean and a distinguished professor of pediatrics. His work helped define the developing field of kidney disease and renal physiology in children. With Adrian Spitzer, he co-authored the 1969 review “The maturing kidney,” an important early synthesis of developmental renal physiology.

A. J. Little was a co-author of the 1973 British Medical Journal study “Interpretation of serum calcium in patients with abnormal serum proteins.” That study analysed the relationship between serum calcium and albumin and derived an albumin-adjustment equation. Reliable biographical detail identifying this author beyond the publication record is limited, so MedMaths deliberately restricts this profile to the contribution that can be verified from the paper.

J. R. Milner was a co-author of the 1973 British Medical Journal study “Interpretation of serum calcium in patients with abnormal serum proteins.” The study used clinical laboratory specimens to examine the relationship between calcium and serum proteins and derived an albumin-adjustment equation. MedMaths limits this profile to that verified contribution because a definitive authoritative biography for this specific author has not been established.

Robert G. Narins, MD, was a nephrologist especially recognised for education in fluid, electrolyte and acid-base medicine. The American Society of Nephrology named its major education award after him, reflecting his influence as a teacher and mentor. With Michael Emmett, he co-authored the 1977 review “Clinical use of the anion gap,” an important work on clinical interpretation rather than the invention of anion-gap arithmetic.

R. Brian Payne is a clinical biochemist and chemical pathologist associated with St James's University Hospital in Leeds. He was lead author of the 1973 British Medical Journal paper that described an albumin-based adjustment of total serum calcium, work that became highly influential in the history of ‘corrected calcium.’ He has continued to publish on the interpretation and limitations of albumin-adjusted calcium.

Adrian Spitzer, MD (1927–2021), was a paediatric nephrologist and a past president of the American Society of Pediatric Nephrology. Originally from Bucharest, he became a major contributor to developmental nephrology and worked at Albert Einstein College of Medicine and Montefiore. With Chester M. Edelmann Jr., he co-authored the 1969 review “The maturing kidney,” and his later career continued to focus on how renal physiology changes during growth and development.

R. B. Williams was a co-author of the 1973 British Medical Journal study “Interpretation of serum calcium in patients with abnormal serum proteins.” The paper helped establish an albumin-based method for interpreting total serum calcium. Because authoritative biographical information that uniquely identifies this author is limited, this MedMaths profile does not infer credentials or appointments beyond the verified publication record.