In his research, Comorbidity and Psychological intervention is intimately related to Psychiatry, which falls under the overarching field of Mental health. With his scientific publications, his incorporates both Comorbidity and Disease. As part of his studies on Disease, he often connects relevant subjects like Coronavirus disease 2019 (COVID-19). His Psychological intervention study frequently draws connections between related disciplines such as Psychiatry. His Cohort study research includes a combination of various areas of study, such as Prospective cohort study, Cohort and Observational study. Paul J. Novotny performs multidisciplinary study in the fields of Cohort and Cohort study via his papers. His work often combines Gene and Stop codon studies. He performs integrative study on Stop codon and Gene in his works. Genetics is closely attributed to Cosmid in his study.