Intraclass correlation coefficients in the Brazilian network for Surveillance of Severe Maternal Morbidity study - Haddad, S M; Sousa, M H; Cecatti, J G; Parpinelli, M A; Costa, M L; Souza, J P (BMC Pregnancy Childbirth, 2012)
; Brazilian Network for Surveillance of Severe Maternal Morbidity Group.