Discover open access scientific publications

Search, annotate, share and cite publications

Publications by Robert H. Usher

Secular Trends in Preterm Birth

JAMA - Journal of the American Medical Association

English

Related publications

The Secular Trends in Male:Female Ratio at Birth in Postwar Industrialized Countries

Environmental Health Perspectives

Occupational Health

English

Negative Secular Trends in Medicine: Summary

American Journal of Medicine

English

Secular Trends and Latitude Gradients in Sex Ratio at Birth in Asia During the Past 60 Years

Pediatrics International

English

Preterm Birth Rate

Nursing for Women's Health

English

Recurrent Preterm Birth

Seminars in Perinatology

English

The Influence of Migration on Secular Trends in Sex Ratios at Birth in Cuba in the Past Fifty Years

West Indian Medical Journal

English

Secular Trends in Stroke Incidence and Mortality.

Cardiovascular Medicine

Specialized Nursing

English

Secular Trends in Physical Fitness in Danish Adolescents

Scandinavian Journal of Medicine and Science in Sports

Sports Medicine

Physical Therapy

English

Biomarkers for Preterm Birth

Journal of Proteome Research

English