One observer (ST) was a medical doctor
with training in age estimation from the clavicle using MRI and CT.
The second observer (KEJ) was a radiologist specialized in
musculoskeletal MRI, but with no prior training in estimating
age from the clavicle. The third observer (CV) was a forensic
anthropologist with training in several skeletal age estimation
methods other than the clavicle using CT imaging.