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Publikováno v:
The Journal of heart valve disease. 3(6)
A 25-year-old man presented with sudden onset right-sided hemiplegia. Transthoracic and transesophageal echocardiograms demonstrated a mobile mass attached to the anterior mitral leaflet. The mass was, however, not found at operation.
Autor:
C. S. Ofori
Publikováno v:
Experimental Agriculture. 9:15-22
SUMMARYCrop yield on continuously cultivated tropical forest soil was maintained at a fairly high level by the application of mineral fertilizer. Although the low rate of nitrogen applied as ammonium sulphate did not increase yield, there was a signi