Adherent thrombus from bleeding ulcer results in obstructing duodenal pseudotumor.
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Biomedical subjects
Publications and source records attributed to A T Richards.
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Low gastric acid output leads to hypergastrinaemia, which results in the stimulation of dormant enterochromaffin-like cells in the gastric mucosa; these can progress to carcinoid tumours. A patient is described with this syndrome. Reduction in gastrin levels by antrectomy resulted in regression of the carcinoids.
Tumours arising in accessory parotid glands are a distinct entity and a pitfall for the unwary . The diagnosis is made on the basis of clinical examination and a high index of suspicion is essential. Treatment is by wide exposure and careful dissection because of the relationship of the accessory parotid gland to the facial nerve and parotid duct. Four cases are described.
Several authors have argued that increased work opportunities for women have helped to produce a reduction in the average age at marriage in the United States. This paper tests this proposition on data for the 100 largest SMSA's in 1960. Using ordinary least-squares regression, we find that areas of relatively attractive female employment opportunities had relatively low proportions of women ever married in the age interval 22-24. Other variables significantly related to the proportion married in an SMSA are its sex ratio, percent Catholic, and number of inhabitants. A decline in the sex ratio and improvements in female employment opportunities appear to have been equally influential in producing declines in proportions married between 1960 and 1970.
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