@article {cokkinos1972influence,
	title = {Influence of atrial mass on amplitude and duration of the P wave},
	journal = {Chest},
	volume = {61},
	number = {4},
	year = {1972},
	pages = {336{\textendash}339},
	publisher = {Elsevier},
	author = {Cokkinos, D.V. and Leachman, RD and Zamalloa, Oscar and Cabrera, Reinaldo and Ferrer, M Irene}
}
