TY - CONF T1 - How often are patients interviewed in health research? An informetric approach JO - Proceedings of ISSI 2015 Istanbul: 15th International Society of Scientometrics and Informetrics Conference PY - 2015/01/01 AU - Levitt JM AU - Thelwall M ED - SN - 9789755183817 SP - 384 EP - 389 Y2 - 2024/12/28 ER -