Hekkala, A., Swan, H., Viitasalo, M., Väänänen, H., & Toivonen, L. (2011). Epinephrine Bolus Test in Detecting Long QT Syndrome Mutation Carriers with Indeterminable Electrocardiographic Phenotype. Ann Noninvasive Electrocardiol.

Hekkala, Anna‐Mari, Heikki Swan, Matti Viitasalo, Heikki Väänänen, and Lauri Toivonen. "Epinephrine Bolus Test in Detecting Long QT Syndrome Mutation Carriers With Indeterminable Electrocardiographic Phenotype." Ann Noninvasive Electrocardiol 2011.

Hekkala, Anna‐Mari, et al. "Epinephrine Bolus Test in Detecting Long QT Syndrome Mutation Carriers With Indeterminable Electrocardiographic Phenotype." Ann Noninvasive Electrocardiol 2011.