What resolves this contention: {'position': 'Serotonin deficiency contributes t…

What resolves this contention: {'position': 'Serotonin deficiency contributes to depression through reduced 5-HT signaling', 'supporting_dois': ['10.3390/ijms27031267', '10.1002/mds.70199', '10.2967/jnumed.124.268669', '10.1093/brain/awaf335', '10.1177/0271678x261427944']} / {'position': 'Evidence does not support a simple serotonin deficiency model of depression', 'supporting_dois': ['10.3390/jcm15010253', '10.1002/trc2.70218', '10.3390/nu18010096', '10.1016/j.eclinm.2026.103800', '10.3390/healthcare13222958', '10.3390/ph19010156', '10.1177/20451253251396255', '10.3390/toxins18010033', '10.1038/s41398-025-03463-8', '10.1186/s13643-025-02902-3', '10.1038/s41380-024-02697-0', '10.1001/jamanetworkopen.2026.6028', '10.1007/s44192-025-00312-4', '10.3390/jcm15010253', '10.1038/s41398-025-03463-8', '10.3390/toxins18010033', '10.3390/healthcare13222958', '10.1186/s13643-025-02902-3', '10.1038/s41380-024-02697-0']}