No abstract available
Publication types
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Adolescent
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Adult
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Amino Acids / blood*
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Child
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Cystine / blood
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Family*
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Female
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Genetics*
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Humans
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Lysine / blood
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Male
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Methionine / blood
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Molecular Biology
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Ornithine / blood
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Pregnancy
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Proline / blood
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Research Design*
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Sex Factors
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Twins*
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Twins, Dizygotic
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Twins, Monozygotic
Substances
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Amino Acids
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Cystine
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Proline
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Methionine
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Ornithine
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Lysine