[Time factors--age at time of diagnosis, onset of disease, length of anamnesis].
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000473:pathology*; D006801:Humans; D008487:Medical History Taking; D008875:Middle Aged; D013223:Statistics as Topic; D013997:Time Factors
Zeitliche Faktoren--Untersuchungsalter, Krankheitsbeginn, Anamnesedauer.