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Recommendations for presenting analyses of effect modification and interaction

(2012) Mirjam J Knol et al.   INTERNATIONAL JOURNAL OF EPIDEMIOLOGY

Smoking as a risk factor for multiple sclerosis

(2012) Jonatan Salzer et al.   Multiple Sclerosis Journal

Lack of replication of interaction between EBNA1 IgG and smoking in risk for multiple sclerosis

(2012) E. Sundqvist et al.   NEUROLOGY

Vitamin D as a protective factor in multiple sclerosis

(2012) J. Salzer et al.   NEUROLOGY

Smoking: effects on multiple sclerosis susceptibility and disease progression

(2011) Dean M. Wingerchuk   Therapeutic Advances in Neurological Disorders

Combined effects of smoking, anti-EBNA antibodies, and HLA-DRB1*1501 on multiple sclerosis risk

(2010) K. C. Simon et al.   NEUROLOGY