Nickson C (11 July 2014). "Digoxin Toxicity". LITFL • Life in the Fast Lane Medical Blog. Archived from the original on 20 February 2016. Retrieved 24 July 2017.
Nickson C (11 July 2014). "Digoxin Toxicity". LITFL • Life in the Fast Lane Medical Blog. Archived from the original on 20 February 2016. Retrieved 24 July 2017.