Comparison of interferon beta products and azathioprine in the treatment of relapsing-remitting multiple sclerosis
2007 ◽
Vol 254
(12)
◽
pp. 1723-1728
◽
1997 ◽
Vol 103
(1)
◽
pp. 99
2013 ◽
Vol 115
◽
pp. S65-S69
◽
1999 ◽
Vol 67
(4)
◽
pp. 451-456
◽