Vitamin D levels in patients with small and medium vessel vasculitis Fatma Nur Korkmaz; Gulsen Ozen; Ali Ugur Unal; Asli Odabasi; Meryem Can; Ebru As¿c¿oglu; Serhan Tuglular; Haner Direskeneli;

La vitamina D no es útil como biomarcador para la actividad de la enfermedad en artritis reumatoide Paola de la Torre Lossa; Mario Moreno Álvarez; María del Carmen González Guzmán; Rafael López Martínez; Carlos Ríos Acosta;

Investigating the comparative effect of vitamin D level with the type of complications in Henoch Schönlein purpura and Kawasaki disease Mehrnoush Hassas Yeganeh; Reza Sinaei; Mitra Rouhi; Reza Shiari; Vadood Javadi Parvaneh; Khosro Rahmani; Erfan Sheikhbahaei;