Birth order in multiple sclerosis: a population-based case-control study in Alcoi, Spain.
Matias-Guiu
J
J
Ferri
L
L
Falip
R
R
Galiano
L
L
Martin
R
R
D001722:Birth Order; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D008297:Male; D009103:Multiple Sclerosis / Q000453:epidemiology*; D013030:Spain / Q000453:epidemiology