Scoping review of ethnobotanical studies on Piliostigma thonningii (Schumach.) Milne-Redh. in Sub-Saharan Africa - Nethathe, Bono; Ramphinwa, Lonia Maanea; Selekane Motadi, Ananias; Matlakala, Frans Koketso (Frontiers in Pharmacology, 2025)