Effectiveness of topical treatment for pain control of malignant fungating wound in adults compared to systemic treatment: a systematic review protocol. SciELO Preprints, 2022. DOI: 10.1590/SciELOPreprints.4893. Disponível em: https://preprints.scielo.org/index.php/scielo/preprint/view/4893. Acesso em: 24 maio. 2026.