The crisis surrounding NMC Health widened, as the struggling hospital operator rejected a call to be put into administration and United Arab Emirates’ banks disclosed more than $2 billion of exposure. The next chapter opens Thursday when a U.K. court is scheduled to hear Abu Dhabi Commercial Bank PJSC’s bid to place NMC into the hands of administrators. With a market value of $2.4 billion and total debt of $6.6 billion, NMC now faces an investigation by the U.K.’s Financial Conduct Authority.