TY - JOUR A1 - Liu, H. A1 - Li, J. A1 - Ha, T. A1 - Li, J. T1 - Assessment of random recruitment assumption in respondent-driven sampling in egocentric network data Y1 - 2012 DO - 10.4236/sn.2012.12002 JF - Social Networking VL - 1 IS - 2 ER -