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Federal
NIST-CODATA Internationally Recommended 2022 Values of the Fundamental Physical Constants - SRD 121
National Institute of Standards and Technology —
This site, developed in the Physics Laboratory at NIST, addresses three topics: fundamental physical constants, the International System of Units (SI), which is the... -
Federal
NSDUH 2021 Methodological Resource Book (MRB)
U.S. Department of Health & Human Services —
Use this collection to provide context for estimates from the National Survey on Drug Use and Health (NSDUH). This collection includes materials used to conduct the... -
Federal
NSDUH 2023 Methodological Resource Book (MRB)
U.S. Department of Health & Human Services —
Use this collection to provide context for estimates from the National Survey on Drug Use and Health (NSDUH). This collection includes materials used to conduct the... -
Federal
NSDUH 2024 Methodological Resource Book (MRB)
U.S. Department of Health & Human Services —
Use this collection to provide context for estimates from the National Survey on Drug Use and Health (NSDUH). This collection includes materials used to conduct the... -
Federal
NSDUH 2019 Methodological Resource Book (MRB)
U.S. Department of Health & Human Services —
Use this collection to provide context for estimates from the 2019 National Survey on Drug Use and Health (NSDUH). This collection includes materials used to conduct... -
Federal
NSDUH 2020 Methodological Resource Book (MRB)
U.S. Department of Health & Human Services —
Use this collection to provide context for estimates from the National Survey on Drug Use and Health (NSDUH). This collection includes materials used to conduct the... -
Federal
NSDUH 2022 Methodological Resource Book (MRB)
U.S. Department of Health & Human Services —
Use this collection to provide context for estimates from the National Survey on Drug Use and Health (NSDUH). This collection includes materials used to conduct the... -
Federal
NIST-CODATA Internationally Recommended 2022 Values of the Fundamental Physical Constants - SRD 121
Department of Commerce —
This site, developed in the Physics Laboratory at NIST, addresses three topics: fundamental physical constants, the International System of Units (SI), which is the...