Intracytoplasmic sperm injection versus high insemination concentration in-vitro fertilization in cases of very severe teratozoospermia.
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Cell Nucleus↗
Biomedical subjects
N Stoddart
Publications and source records attributed to N Stoddart.
HIV-related risk behaviour in UK holiday-makers.
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Adolescent↗
The computer in general practice.
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Computers↗
Radio-enzymic assay of oxo steroids by their reduction with the tritiated form of reduced nicotinamide--adenine dinucleotide.
A method of analysis is proposed based on the enzyme-catalysed transfer of tritium from [3H]NADH to suitable substrates. Its practicability is demonstrated on the examples of oestrone and progesterone with the respective use of the 3 beta, 17 beta- and 3 alpha, 20 beta-hydroxysteroid oxidoreductase. Specificity is tested by application to the analysis of the plasma of pregnant women and measurement of the 3H/14C ratios on purification of the enzymic reduction products.
Estrone↗