Bond, J.V. (1975). Archives of Disease in Childhood, 50, 691. Clinical significance of catecholamine excretion levels in diagnosis and treatment of neuroblastoma. The pattern of urinary excretion of vanillylmandelic acid (VMA) was studied in 50 children with neuroblastoma. There were 10 disease-free survivors, and 4 children who survive for 3 or more years with residual nonmetastatic disease, 3...

An enzymatic method is described for the measurement of vanillyl mandelic acid (VMA). The method utilizes an L-mandelic acid dehydrogenase preparation from Pseudomonas fluorescens A-312 to catalyze the transformation of VMA to vanillin. The method is specific for VMA becauseonly the final product, vanillin, will absorb maximally at 350 m/L. The results compare favorably with the method of Pisan...

We read with interest the recent study of Gattoussi et al. investigating the association between vitreomacular adhesion (VMA) and AMD. The authors did not find any statistically significant associations of VMA with any stage of AMD. This result is in contrast to other previous studies that have found an association between VMA and exudative AMD, suggesting that VMA might be a risk factor for ch...

We read with interest the recent study of Gattoussi et al. investigating the association between vitreomacular adhesion (VMA) and AMD. The authors did not find any statistically significant associations of VMA with any stage of AMD. This result is in contrast to other previous studies that have found an association between VMA and exudative AMD, suggesting that VMA might be a risk factor for ch...

We read with interest the recent study of Gattoussi et al. investigating the association between vitreomacular adhesion (VMA) and AMD. The authors did not find any statistically significant associations of VMA with any stage of AMD. This result is in contrast to other previous studies that have found an association between VMA and exudative AMD, suggesting that VMA might be a risk factor for ch...

We read with interest the recent study of Gattoussi et al. investigating the association between vitreomacular adhesion (VMA) and AMD. The authors did not find any statistically significant associations of VMA with any stage of AMD. This result is in contrast to other previous studies that have found an association between VMA and exudative AMD, suggesting that VMA might be a risk factor for ch...

We read with interest the recent study of Gattoussi et al. investigating the association between vitreomacular adhesion (VMA) and AMD. The authors did not find any statistically significant associations of VMA with any stage of AMD. This result is in contrast to other previous studies that have found an association between VMA and exudative AMD, suggesting that VMA might be a risk factor for ch...

We read with interest the recent study of Gattoussi et al. investigating the association between vitreomacular adhesion (VMA) and AMD. The authors did not find any statistically significant associations of VMA with any stage of AMD. This result is in contrast to other previous studies that have found an association between VMA and exudative AMD, suggesting that VMA might be a risk factor for ch...

The catecholamine metabolites 3-methoxy-4-hydroxyman delic acid (VMA) and 3-methoxy-4-hydroxyphenylacetic acid (HVA) were assayed in initialurine specimensof 288 patients with neuroblastoma and related tumors of neural crest origin (NCT). The interrelationships between the excretion of these metabolites, age at diagnosis, stage of the disease, site of the primary tumor, and prognosis were exami...

We read with interest the recent study of Gattoussi et al. investigating the association between vitreomacular adhesion (VMA) and AMD. The authors did not find any statistically significant associations of VMA with any stage of AMD. This result is in contrast to other previous studies that have found an association between VMA and exudative AMD, suggesting that VMA might be a risk factor for ch...