Distribution of rotavirus VP4 genotypes and VP7 serotypes among nonhospitalized and hospitalized pat
2000
There is disclosed a marine navigational calculator device of the slide rule type whereby tidal depths over bottom structures may be determined as a function of the time of the tide or time of calendar day and whereby the entire time span available to a mariner to successfully negotiate such charted bottom structures for a given tidal flow is visually presented.
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