Introduction DURING the past 25 years numerous outbreaks of a cholera-like disease, usually referred toasparacholera, have occurred in Indonesia (Pollitzer 1959). This disease is clinically indistinguishable from classical cholera and a redefinition, by World Health Organization, of" cholera" now includes cholera El Tor (World Health Organization 1962). In the last 100 years cholera has disappe...

The radiological changes in the peripheral joints of patients with psoriatic arthritis differ from those in cases of rheumatoid arthritis (Wright, 1961; Lassus, Mustakallio, and Laine, 1964; Sherman, 1952; di Vittorio, Viara, and Chiaudano, 1965; Tesarek, 1966; Sigler, 1966). Changes are also seen in the spine and sacro-iliac joints (Wright, 1961; Lassus and others, 1964; Sherman, 1952; Duthie,...