https://ghr.nlm.nih.gov/gene/MAOA MAOA gene https://ghr.nlm.nih.gov/gene/MAOA MAOA gene https://ghr.nlm.nih.gov/gene/MAOA MAOA gene MAOA gene https://ghr.nlm.nih.gov/gene/MAOA MAOA or ‘warrior’ gene MAOA gene MAOA gene MAOA gene MAOA MAOA gene https://ghr.nlm.nih.gov/gene/MAOA https://ghr.nlm.nih.gov/gene/MAOA