Breakfast cereals and snacks are foodstuffs highly appreciated by children, and the possibility that they contain substantial amounts of fluoride, associated with their widespread consume, may make them important contributors to the total daily fluoride intake. The aim of this study was to analyze the fluoride content on several breakfast cereals (A) and snacks (B) purchased in Brazil. The anal...

SIR,-Following the recent report by Drs P J Toghill and R G Wilcox (28 February, p 502) we would like to recount a similar case in this hospital The patient was a 54-year-old housewife who developed aplastic anaemia of undetermined aetiology. As in the case reported, she had been using a new hair dye prior to this. This contained para-toluene diamine sulphate. She showed no response to predniso...

Cases of benign hepatoma, peliosis hepatis, primary hepatocellular carcinoma and hepatic cholangiocarcinoma have aIl been linked to the use of androgenic steroids, mostly oxymetholonel-13. At least 25 cases ofliver-cell tumour have been reported in patients with Fanconi's anaemial-6,11,12, aplastie anaemial,4,7,8, paroxysmal nocturnal haemoglobinurial,12,13, panmyelopathy9 or megaloblastic anae...

We describe two female patients aged 31 and 62 y who developed severe aplastic anaemia following the use of hair dye containing para-toluenediamine. One received a bone marrow transplant but died after developing graft versus host disease and severe opportunistic infection. The second responded to treatment with methylprednisolone, oxymetholone and antithymocyte globulin and 3 y later she has a...

This paper describes an augmented reality (AR) environment that allows multiple participants or multi-user to interact with 2D and 3D data. AR simply can provide a collaborative interactive AR environment for urban simulation, where users can interact naturally and intuitively. In addition, the collaborative AR makes multi-user in urban simulation to share simultaneously a real world and virtua...