Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.
Q: Probe-to-bone test and simple X-rays are both standard tests for the diagnosis of diabetic foot osteomyelitis. This study demonstrates the importance of considering jointly clinical information (probe-to-bone test) and diagnostic tests (simple radiography) to increase agreement among clinicians on diagnosis of diabetic foot osteomyelitis.
A: 
Which disease can be diagnosed with the "probe to bone" test?