By Bassam Masoud, Nidal al-Mughrabi and Dan Williams GAZA/DOHA/JERUSALEM (Reuters) – Israeli forces, advancing deep into western Khan Younis in Gaza’s bloodiest fighting so far in January, stormed one hospital and put another under siege on Monday, cutting off the wounded from trauma care, Palestinian officials said. Troops advanced for the first time into the al-Mawasi district near the Mediterranean Coast, west of Khan Younis, the main city in southern Gaza. There, they stormed the Al-Khair hospital and were arresting medical staff, Gaza health ministry spokesman Ashraf al Qidra told Reuters…