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Agrobacterium tumefaciens exhibits an unusual flagellation pattern in the electron microscope. The typical pattern is of two flagella in a polar or sub-polar tuft at one pole only, plus one or two… (More)
Depression is a common illness which affects some 3% of the population per year. At least 25% of those with marked depression do not consult their general practitioner and in half of those who do the… (More)
Eight patients suffering from puerperal psychosis rapidly recovered, then relapsed shortly before the onset of their first menstrual period; five of them had repeated premenstrual relapses. This… (More)
A third type III secretion system involved in virulence in Yersinia enterocolitica has been identified.