Fig. 1
From: Henoch-Schönlein purpura and drug and vaccine use in childhood: a case-control study
Enrollment, retrieving and validation process of HSP patients
Fig. 1 | Italian Journal of Pediatrics
From: Henoch-Schönlein purpura and drug and vaccine use in childhood: a case-control study
Enrollment, retrieving and validation process of HSP patients