Contribution of spontaneous L-type Ca2+ channel activation to the genesis of Ca2+ sparks in resting cardiac myocytes - Guangqin Zhang; Yu Fu; Dongmei Yang; Xuemei Hao; Shuhua Bai; Yiqun Tang; Edward G. Lakatta; Caihong Wu; Heping Cheng (Science in China, Series C: Life Sciences, 2004)