wikimedia
/
wikidata
/
Login
Register
TriplyDB
Wikidata
Browser
Table
SPARQL
Graphs
1
1
Services
1
1
Assets
0
0
Insights
Schema
BETA
Class frequency
Class hierarchy
PCD11.140383
PCD11.140383
http://dx.doi.org/10.5888/PCD11.140383
Prevalence of sleep duration on an average school night among 4 nationally representative successive samples of American high school students, 2007-2013.
P356
Q34686880-C5B37CA8-E187-4437-B9B4-F9CBDCC14B81
P356
PCD11.140383
http://dx.doi.org/10.5888/PCD11.140383