Yang W, Chen S, Cheng G, Vaisocherová H, Xue H, Li W, Zhang J, Jiang S. Film thickness dependence of protein adsorption from blood serum and plasma onto poly(sulfobetaine)-grafted surfaces. Langmuir. 2008 Sep 02;24(17):9211–4. doi: 10.1021/la801487f. PMID: 18672924.