Fig. 4From: Catastrophic health expenditure of cancer patients at the end-of-life: a retrospective observational study in ChinaBorrowing money from relatives and friends among catastrophic households (N = 792) US$,United States dollars.a Q1 is the poorest and Q5 is the wealthiest.b Based on a currency exchange rate of the 6.6423 yuan to US$1.00 in 2016Back to article page