China 
Africa 
- Coronary artery anomaly
- Coronary artery bypass graft
- Coronary artery bypass graft surgery
- Coronary artery bypass grafting
- Coronary artery bypass surgery
- Coronary artery disease
- Coronary artery dissection
- Coronary artery ectasia
- Coronary artery spasm
- Coronary circulation
- Coronary flow reserve
- Coronary heart disease
- Coronary ischemia
- Coronary ligament
- Coronary occlusion
- Coronary perfusion pressure
- Coronary sinus
- Coronary spasm
- Coronary steal
- Coronary stent
- Coronary stenting
- Coronary thrombosis
- Coronary vasospasm
- Coronary vein
- Coronary vessels
- Coronavac
- Coronaviridae
- Coronavirinae
- Coronavirus
- Coronavirus disease
- Coronectomy
- Coronin
- Coronoid process
- Coronoid process of the mandible
- Corosolic acid
- Corpora amylacea
- Corpus callosotomy
- Corpus callosum
- Corpus callosum agenesis
- Corpus cavernosum
- Corpus cavernosum penis
- Corpus hemorrhagicum
- Corpus luteum
- Corpus luteum cyst
- Corpus spongiosum
- Correctional health care
- Corrective lenses
- Correlates of immunity
- Correlation coefficient
- Correlation coefficients
- Correlation ratio
- Corrigan's pulse
- Corrinoid
- Corrosion
- Corrosion casting
- Corrosion inhibitors
- Corrosion protection
- Corrosion resistance
- Corrugator supercilii
- Corset
- Cortactin
- Cortex
- Cortical area
- Cortical blindness
- Cortical bone
- Cortical columns
- Cortical deafness
- Cortical dysplasia
- Cortical layer
- Cortical map
- Cortical reaction
- Cortical region
- Cortical remapping
- Cortical spreading depression
- Cortical visual impairment
- Cortico-basal ganglia-thalamo-cortical loop
- Corticobasal degeneration
- Corticobasal syndrome
- Corticobulbar tract
- Corticogenesis
- Corticomuscular coherence
- Corticorelin
- Corticospinal tract
- Corticosteroid induced osteoporosis
- Corticosteroid receptors
- Corticosteroid therapy
- Corticosteroid-binding globulin
- Corticosteroids
- Corticosterone
- Corticotrope
- Corticotropin
- Corticotropin releasing factor
- Corticotropin releasing hormone
- Corticotropin-releasing hormone
- Corticotropin-releasing hormone receptor 1
- Cortisol
- Cortisol awakening response
- Cortisone
- Cortisone acetate
- Cortisporin
- Cortistatin
- Corydalis
- Corydalis yanhusuo
- Corynebacteriaceae
- Corynebacterium amycolatum
- Corynebacterium diphtheriae
- Corynebacterium jeikeium
- Corynebacterium pseudotuberculosis
- Corynebacterium ulcerans
- Corynebacterium urealyticum
- Corynebacterium xerosis
- Cosavirus
- Cosegregation
- Cosleeping
- Cosmetic
- Cosmetic camouflage
- Cosmetic dentistry
- Cosmetic facial surgery
- Cosmetic surgery
- Cosmetics
- Cosmids
- Cost analysis
- Cost benefit analysis
- Cost effectiveness
- Cost effectiveness analysis
- Cost of drug development
- Cost utility analysis
- Cost-benefit analysis
- Cost-effectiveness analysis
- Costal cartilage
- Costamere
- Costeff syndrome
- Costello syndrome
- Costochondral
- Costochondritis
- Costoclavicular ligament
- Costophrenic angle
- Costotransverse joint
- Costovertebral angle
- Costovertebral angle tenderness
- Costovertebral joint
- Costunolide
- Costus
- Cosyntropin
- Cotard delusion
- Cotard's syndrome
- Cotinine
- Cotransmission
- Cotransporter
- Cotrimoxazole