The variations of the six serum proteins before and after IVIG administration. Most of the KD subjects were subjected to ELISA for three times: at the acute phase before IVIG administration (pre-IVIG phase), three days after IVIG administration (post-IVIG phase) and three weeks after IVIG administration (convalescent phase). Each line presented the three ELISA values of one subject at the three phases. The sample size is 78. *** and **** denoted p-values < 0.001 and 0.0001 according to pair-wised t-tests, respectively.