A post from March 15 on the A & S Research website simply states, âToday is a sad day to report the passing of Dr. Roger K. Leir, we have lost a great family man, podiatrist and devoted ufologist. He will be greatly missed by all.â.
On the ECG, failure to capture is identified by the presence of pacing spikes without associated myocardial depolarization. Causes include pacing lead problems, battery or component failure, low pacing voltage or elevated myocardial pacing thresholds, and exit block.
vaccination failure. following administration of a vaccine, the animal develops the disease. The cause is often related to faulty inactivation of the vaccine due to improper handling or inappropriate administration, or the animal was incubating the disease at the time of vaccination.