RT Journal Article SR Electronic T1 Pneumococcal Vaccination Strategies in the Real World of Chronically Ill Patients JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 255 OP 257 DO 10.3899/jrheum.151289 VO 43 IS 2 A1 WULFFRAAT, NICO M. A1 HEIJSTEK, MARLOES W. YR 2016 UL http://www.jrheum.org/content/43/2/255.abstract AB