JCAB Medical!
I used to work for Nippon Cargo Airlines, from what the pilots told me the JCAB medical is tough to pass. I believe the JFK medical center in New York is still able to conduct the medical. There is a doctor in SFO that used to conduct the medical, forgot his name.
We had one pilot that was a marathon runner and was rejected because his blood pressure was too low, if you can believe that!
Midnight Mike