Vitamin D3and gargling for the prevention of upper respiratory tract infections: a randomized controlled trial
2005 ◽
Vol 173
(9)
◽
pp. 1043-1048
◽
2013 ◽
Vol 57
(10)
◽
pp. 1384-1392
◽
2015 ◽
Vol 22
(3)
◽
pp. 163-170
◽
2004 ◽
Vol 145
(1)
◽
pp. 135-136
◽
2005 ◽
Vol 116
(Supplement 2)
◽
pp. 574.1-574
◽