Arthritis and dysmenorrhoea.
D001168:Arthritis / Q000453:epidemiology / Q000517:prevention & control*; D004412:Dysmenorrhea / Q000453:epidemiology / Q000517:prevention & control*; D005260:Female; D015277:Hotlines / Q000458:organization & administration*; D006801:Humans; D010353:Patient Education as Topic / Q000458:organization & administration*; D013019:South Africa / Q000453:epidemiology