What does Gaza's healthcare system currently need?

According to Dr. Christopher Holden, Gaza's healthcare system essentially needs 'everything.' He emphasizes that the quicker answer would be to ask what they don't need, highlighting the comprehensive shortages facing medical facilities there. While not specifying every item in this brief segment, he indicates a widespread lack of essential medical supplies and resources. Despite these critical shortages, Dr. Holden powerfully acknowledges that Gaza's doctors, nurses, and medical students are 'absolute legends' and 'heroes' of the situation, working admirably under extremely challenging circumstances to provide care.