(Q44466792)
Statements
1 reference
Case-control study design: what, when, and why? (English)
1 reference
Jayawant N Mandrekar
1 reference
Sumithra J Mandrekar
1 reference
1 December 2008
1 reference
1 reference
3
1 reference
12
1 reference
1371-1372
1 reference
Identifiers
1 reference
1 reference