(Q30366090)
Statements
1 reference
Importance of observational studies in clinical practice. (English)
1 reference
Janusz Gumprecht
1 reference
Robert J Ligthelm
1 reference
Vito Borzì
1 reference
Ryuzo Kawamori
1 reference
Yang Wenying
1 reference
Paul Valensi
1 reference
1 reference
Identifiers
1 reference