subthreshold depression constipation 2 depression 2 gut-brain axis 2 irritable bowel syndrome 2 ANXIETY 1 Article 1 Bayesian analysis 1 Bayesian network 1 Beck Depression Inventory 1 Center for Epidemiological Studies Depression Scale 1 Chinese medicinal formula 1 Chinese medicine 1 Chinese traditional peripateticism pill 1 DISORDERS 1 Kessler Psychological Distress Scale (K6) 1 MICROBIOTA 1 PAIN 1 Patient Health Questionnaire 9 1 STRESS 1 SYMPTOMS 1 Tai Chi 1 acupuncture 1 behavior therapy 1 behavioral activation program 1 behavioral activation with mindfulness 1 brain electrical biofeedback therapy 1 bright light therapy 1 cognitive behavioral therapy 1 collaborative care 1