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Nematodes are important: parasitic nematodes threaten the health of plants, animals and humans on a global scale; interstitial nematodes pervade sediment and soil ecosystems in overwhelming numbers; and Caenorhabditis elegans is a favourite experimental model system. A lack of clearly homologous characters and the absence of an informative fossil record(More)
Nematodes are known to be a useful system for studies of comparative development. Here we perform a molecular phylogenetic analysis to allow for the independent interpretation of the developmental and morphological changes observed among a selected set of nematode species. Our molecular phylogenetic analysis is based on coding regions of the genes for RNA(More)
Hypothalamic hamartomas are rare tumors that typically present in childhood, often with gelastic seizures, precocious puberty, or as a manifestation of Pallister-Hall syndrome. Neurofibrillary tangles are cytoplasmic aggregates of hyperphosphorylated tau that are best recognized in Alzheimer disease, other tau-associated neurodegenerative diseases, or as(More)
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