@article {5481,
	title = {AN INTERNAL STANDARD FOR PORPHYRIN ANALYSIS},
	journal = {Analytical Biochemistry},
	volume = {140},
	number = {2},
	year = {1984},
	note = {ISI Document Delivery No.: TE601Times Cited: 14Cited Reference Count: 8},
	pages = {360-365},
	type = {Article},
	isbn = {0003-2697},
	url = {<Go to ISI>://A1984TE60100008},
	author = {Carlson, R. E. and Sivasothy, R. and Dolphin, D. and Bernstein, M. and Shivji, A.}
}
