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  1. 6921
    “…Vitamin D deficiency in pregnancy is widely reported, but whether this applies in North America is unclear since no population-based surveys of vitamin D status in pregnancy exist in Canada or the United States. …”
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    Factors Associated with Serum 25-Hydroxyvitamin D Concentration in Two Cohorts of Pregnant Women in Southern Ontario, Canada
  2. 6922
    “…Phylogenetic analyses of sequences of mitochondrial and nuclear genes of this and other capniid stoneflies from this region and elsewhere in western North America indicated extensive haplotype sharing, limited genetic differences, and a lack of reciprocal monophyly between A. arapahoe and the sympatric A. decepta, despite distinctive and consistent morphological differences in the sexual apparatus of males of both species. …”
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    Integrative taxonomy refutes a species hypothesis: The asymmetric hybrid origin of Arsapnia arapahoe (Plecoptera, Capniidae)
  3. 6923
    “…Domestic production provides a foundation for food security in wealthy countries, usually located in areas with favorable conditions for agriculture (including North America, Australia, New Zealand, Kazakhstan) and in countries which, though characterized by a relatively small area of arable land per capita, demonstrate high production intensity (mainly European countries). …”
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    Food security and food self-sufficiency around the world: A typology of countries
  4. 6924
    “…In North America, Sin Nombre virus (SNV) is the main cause of hantavirus cardiopulmonary syndrome (HCPS), a severe respiratory disease with a fatality rate of 35–40%. …”
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    Development and Characterization of a Sin Nombre Virus Transmission Model in Peromyscus maniculatus
  5. 6925
    “…Here, we used experimental crosses in Lythrum salicaria, a species with well-established history of multiple introductions to Eastern North America, to quantify and compare admixture effects in native European and invasive North American populations. …”
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    Effects of admixture in native and invasive populations of Lythrum salicaria
  6. 6926
    “…METHODS: We evaluated Acer rubrum herbarium specimens across eastern North America, classifying them into eight reproductive phenophases and four stages of leaf development. …”
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    Phenology models using herbarium specimens are only slightly improved by using finer‐scale stages of reproduction
  7. 6927
    “…Populations of both species show opposite patterns across major parts of North America and in the case of B. eunomia also across Asia. …”
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    Cross-continental phylogeography of two Holarctic Nymphalid butterflies, Boloria eunomia and Boloria selene
  8. 6928
    “…Many liver study groups throughout Asia, North America and Europe advocate a surveillance program for at-risk individuals to allow early identification of HCC. …”
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    Hepatocellular Carcinoma: State of the Art Imaging and Recent Advances
  9. 6929
    “…The exceptions were North America and Western Europe, where there was a reduction of forestry and agriculture impacts on nature, accentuated by the 2007-2008 financial crisis. …”
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    Increasing impacts of land-use on biodiversity and carbon-sequestration driven by population and economic growth
  10. 6930
    “…This transition coincided with the ancestral single colonization event of Central/North America ca. 20 MYA, documented in a recent phylogenomic study showing that almost the entire crown group of the higher attine ants, including the leaf‐cutting ants, evolved there and not in South America. …”
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    The evolution of abdominal microbiomes in fungus‐growing ants
  11. 6931
    “…Mice Against Ticks is a community-guided ecological engineering project that aims to prevent tick-borne disease by using CRISPR-based genome editing to heritably immunize the white-footed mice (Peromyscus leucopus) responsible for infecting many ticks in eastern North America. Introducing antibody-encoding resistance alleles into the local mouse population is anticipated to disrupt the disease transmission cycle for decades. …”
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    Mice Against Ticks: an experimental community-guided effort to prevent tick-borne disease by altering the shared environment
  12. 6932
    “…The legal and commercial production of the cannabis plant is a relatively new, rapidly growing, and highly profitable industry in Europe and North America. However, more knowledge transfer from plant studies and horticultural communities to commercial cannabis plant growers is needed. …”
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    An Update on Plant Photobiology and Implications for Cannabis Production
  13. 6933
    “…North America's ~1.1‐Ga failed Midcontinent Rift (MCR) is a striking feature of gravity and magnetic anomaly maps across the continent. …”
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    Seismic Imaging of the North American Midcontinent Rift Using S‐to‐P Receiver Functions
  14. 6934
    “…American martens Martes americana and fishers Pekania pennanti are medium‐sized mustelids that occur sympatrically across portions of North America, yet mechanisms of coexistence between the two species are not fully understood. …”
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    American marten and fisher do not segregate in space and time during winter in a mixed‐forest system
  15. 6935
    “…Although it has been widely used as an anti-diarrheal treatment in North America for several decades, our study is the first to investigate berberine as an anti-tumor agent in glioma cells. …”
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    Antitumor Effects of Berberine on Gliomas via Inactivation of Caspase-1-Mediated IL-1β and IL-18 Release
  16. 6936
    “…Ixodes scapularis, the blacklegged deer tick, is the principal vector of Lyme disease in North America. Environmental factors are known to influence regional and seasonal incidence of Lyme disease and possibly the endemicity of the disease to the northeastern and upper mid‐western regions of the United States. …”
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    Effects of temperature on bacterial microbiome composition in Ixodes scapularis ticks
  17. 6937
    “…Western corn rootworm (Diabrotica virgifera virgifera LeConte) presents significant pest management challenges for farmers in both North America and Europe. IPD072Aa, a protein derived from Pseudomonas chlororaphis, has previously been shown to have activity against western corn rootworm. …”
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    Characterization of the Spectrum of Insecticidal Activity for IPD072Aa: A Protein Derived from Psuedomonas chlororaphis with Activity Against Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae)
  18. 6938
    “…Africa, Meso America and South America had higher prevalence (15%, 14%, 11%, respectively) while the prevalence in Europe and North America was lower (4%). Prevalence was similar between community and hospital (9%). …”
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    Global Prevalence of Asymptomatic Norovirus Infection: A Meta-analysis
  19. 6939
    “…We applied a polyphasic approach using three molecular markers and light and electron microscopy to investigate spherical cysts sampled from alpine mountains in Europe, North America and South America as well as from both polar regions. …”
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    Sanguina nivaloides and Sanguina aurantia gen. et spp. nov. (Chlorophyta): the taxonomy, phylogeny, biogeography and ecology of two newly recognised algae causing red and orange snow
  20. 6940
    “…Authors mainly published in native journals and collaborated with authors in Scandinavia and North America.…”
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    Scientific Publications in Dentistry in Lithuania, Latvia, and Estonia Between 1996 and 2018: A Bibliometric Analysis
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