Figure 4From: Effectiveness of low-dose doxycycline (LDD) on clinical symptoms of Sjögren's Syndrome: a randomized, double-blind, placebo controlled cross-over studyThe outline of the study protocol and time-table. After each medication period or washout period the VAS score sheets were collected and new sheets for the subsequent period were provided for the patient. Post-experimental interview was performed to evaluate whether the patients had felt overall subjective alleviation of symptoms during the medication.Back to article page