1 From the Arthritis Section, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pa. Supported by Grant A5322, National Institute of Arthritis and Metabolic Diseases. Public Health Service, U. S. Department of Health, Education, and Welfare.
No takes yet. Share an insight, caveat, or question.
Hollander et al. (1963) studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: