Não informado. (2017). British Heart Journal. British Medical Association.
Chicagoスタイル(17版)引用形式Não informado. British Heart Journal. London: British Medical Association, 2017.
MLA(8版)引用形式Não informado. British Heart Journal. British Medical Association, 2017.
警告: この引用は必ずしも正確ではありません.