Knowledge, attitude and practices among parents regarding food poisoning: a cross-sectional study from Palestine oleh Sa’ed Zyoud, Jawad Shalabi, Kathem Imran, Lina Ayaseh, Nawras Radwany, Ruba Salameh, Zain Sa’dalden, Labib Sharif, Waleed Sweileh, Rahmat Awang, Samah Al-Jabi