Not a DOI

The resolution service at https://doi.org resolves DOIs. You have attempted to resolve core/journals/psychological-medicine/article/abs/clinical-and-anatomical-heterogeneity-in-autistic-spectrum-disorder-a-structural-mri-study/744333865649506243BF1BCED02EDEF9, which is not a DOI.

core/journals/psychological-medicine/article/abs/clinical-and-anatomical-heterogeneity-in-autistic-spectrum-disorder-a-structural-mri-study/744333865649506243BF1BCED02EDEF9 may be a Handle (DOIs are a special sort of Handle). If core/journals/psychological-medicine/article/abs/clinical-and-anatomical-heterogeneity-in-autistic-spectrum-disorder-a-structural-mri-study/744333865649506243BF1BCED02EDEF9 is a valid Handle you should be able to resolve it at https://hdl.handle.net.