The first symposium of the Society for the Study ofInborn valuable overview of advances in the application of Errors of Metabolism (SSIEM) on the organic acid urias chemical analysis of amniotic fluid to their early prenatal was held in Leeds in 1971 and published by the Society in diagnosis. The continuing complexity of diagnosis, 1972 (the 9th Annual SSIEM Symposium). Although biochemistry and aetiology ofthe dicarboxylic acid urias relatively few of these disorders were recognized at that has been admirably reduced by the papers from Dr time, the symposium was prompted by the then recent...