That's the answer to your description's question: before or on the 51st ball drawn. But since your heading asks a slightly different question, I'll also answer your heading's question, which is just before 51 balls.
Looking for the definition of AFIS? Find out what is the full meaning of AFIS on Abbreviations.com! 'Automated Fingerprint Identification System' is one option -- get in to view more @ The Web's largest and most authoritative acronyms and abbreviations resource.
Atrial fibrillation (AFib) is a type of abnormal heart rhythm, or arrhythmia. Those with AFib are often at high risk for stroke. Itâs important to look at the horizon for years to come, even if the current risk of stroke may seem small. Many with personal experience know that treatment for AFib often includes blood thinners.