All patients signed a Informed Consent Form, which had been previously approved by the Ethics Committee of PUCRS.
Todas las pacientes incluidas firmaron el Consentimiento Informado aprobado por el Comité de Ética de la PUCRS.
Todas as pacientes incluídas assinaram o Termo de Consentimento Livre e Esclarecido aprovado pelo Comitê de Ética da PUCRS.