awgldk
/
wikidata
/
Login
Register
TriplyDB
Wikidata
Browser
Table
SPARQL
Graphs
1
1
Services
1
1
Assets
0
0
Insights
Schema
BETA
Class frequency
Class hierarchy
1471-2288-10-65
1471-2288-10-65
http://dx.doi.org/10.1186/1471-2288-10-65
Response rates to a mailed survey of a representative sample of cancer patients randomly drawn from the Pennsylvania Cancer Registry: a randomized trial of incentive and length effects.
P356
Q33632715-A863BD8F-4688-420D-A7CB-B0C5A27E7577
P356
1471-2288-10-65
http://dx.doi.org/10.1186/1471-2288-10-65