Try researching the topic under the heading of Post Traumatic Stress Disorder. It has been typical that the aftermath of abortion is usually not fully manifest for 5 - 7 years post the event. Even then, the symptoms are generally attributed to peripheral issues by therapists who have never mildly let alone seriously undertaken a study of the effects of abortion on women let alone men. It's an area of treatment that has sadly been the victim of politics in this country. The proverbial "elephant in the living room."
Some research has been done however by an institute for the study of abortion recovery out of Vermont, I think, or Maine.
Good Luck.....