Ethnomedical survey of plants used by the Orang Asli in Kampung Bawong, Perak, West Malaysia oleh Husain Hj, Radhamani Suraj, Gopinath Rejitha, Chellappan Dinesh, Kalusalingam Anandarajagopal, Samuel Anbu, Muruganandham Vignesh, Promwichit Proom