2021. DETERMINING OPTIMAL CLEANING FREQUENCY AND METHODS FOR WOODEN AND PLASTIC CHOPPING BOARDS: Man Ling Chau1,2, Joanne Su Lin Kang1, Kyaw Thu Aung 1,2,3,5, Keng Wai Mak1,4, Sri Harminda Pahm Hartantyo1,2, Hooi Ming Yap1 and Lee Ching Ng1,5. The Southeast Asian Journal of Tropical Medicine and Public Health. 51, 4 (Jul. 2021), 589–596.