The cutaneous application of a nicotinic acid cream as a diagnostic aid in various rheumatic diseases.
D001168:Arthritis; D001172:Arthritis, Rheumatoid / Q000175:diagnosis*; D006801:Humans; D009525:Niacin; D009539:Nicotinic Acids; D012216:Rheumatic Diseases
D009539:Nicotinic Acids; D009525:Niacin
ARTHRITIS, RHEUMATOID/diagnosis; NICOTINIC ACID