@article {6421,
	title = {Age-associated changes in β-adrenergic modulation on rat cardiac excitation-contraction coupling},
	journal = {Journal of Clinical Investigation},
	year = {1994},
	pages = {2051-2059},
	doi = {10.1172/JCI117559},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/7962551},
	author = {Rui-Ping Xiao and Harold A. Spurgeon and Frances O{\textquoteright}Connor and Edward G. Lakatta}
}
