Early Chinese texts contain extensive disease descriptions, including various texts that contain descriptions of modern-day conditions. During the Sui Dynasty, a leading scholar, Chao Yuanfang, may have authored a leading treatise 1400 years ago. Although these texts are the subject of ongoing research, evidence suggests that a clinical syndrome consistent with pertussis was observed in ancient...

The problems of prolonged disability and pain in the wrist and hand resulting from rheumatoid arthritis are well known, and the management of this generalized disease is primarily a medical problem. Various open operations on these parts have, however, been devised to relieve pain and improve function; it is the purpose of this paper to re-examirne the value of some of these and to clarify the ...

Periodontitis is a widespread disease that appears to be due to a specific bacterial infection. Several species of bacteria have been investigated as potential pathogens, and particularly strong evidence links the presence of Porphyromonas gingivalis with indicators of periodontitis. Information concerning the transmission of P. gingivalis between human contacts may be important in determining ...

THE "Syndrome de Balado" (Balado and Satanowsky, 1929), later known as chiasmal arachnoiditis (Ch.A.) has been reported by many authors (Cushing, 1930a, b; Heuer and Vail, 1931; Craig and Lille, 1931; Vincent, Puech, and David, 1931; David, Hartmann, and Hebert, 1936; Bollack, David, and Puech, 1937a; Hausman, 1937; Vail, 1938). Its aetiology and pathogenesis have, however, remained controversi...

The fourth paragraph of the Discussion section incorrectly characterizes large cluster L and small cluster S. It should read: Discriminant phylotypes are depicted in S6 Fig, which shows, in agreement with the genuslevel analysis of Zhou et al. [1], that periodontitis-associated species of Treponema and Porphyromonas are increased in the small healthy cluster S. However, this small cluster was a...

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