Susan Nelles was similarly charged with murder of children by digoxin poisoning at the Toronto Hospital for Sick Children in 1981. She was not convicted because, as in the de Berk case, all the evidence was circumstantial. It was not until 1993 that the causes for high digoxin on autopsy blood were explained in the Canadian Nurse Journal. The causes of high autopsy blood digoxin are discussed thoroughly in a 2011 book, “The Nurses are Innocent – The Digoxin Poisoning Fallacy” (Dundurn Press, Toronto). This book presents facts in defense of Susan Nelles which apply similarly to the false charge of digoxin poisoning directed against Lucia de Berk.