Table:
text: Pericardial heart valves
Valve-related complications
Infective endocarditis
Main_author No_of_patients Duration_of_follow_up_years Linearized_rate_of_infection Actuarial_freedom_from_infective_endocarditis_
Pavie 675 5  98.2% for all patients, 97.8% for aortic, 99% for mitral, 100% for multiple valve replacements
Duncan (A) 2720 6  97.3% for all patients, 97.4% for aortic valves, 97.6% for mitral valves, 96.3% for multiple valve replacement
Ionescu (B) 1171 10  93.7% for all patients, 94.7% for aortic valves, 97.1% for mitral valves, 89.3% for multiple valve replacement
Zhu 520 10  98% for all patients
Revuelta 239 8 0.67% per patient year 
Garcia-Bengochea 248 8 0.78% per patient year 
Holden (C) 290 6 1.1% per patient year 
Bachet (D) 224 6 1.6% per patient year

Question: How many authors have more than 500 patients regarding pericardial heart valves?

Question: How long was the follow-up for Revuelta for pericardial heart valves?

Question: Which author had the fewest patients among the pericardial heart valves?

Question: What is the longest duration of follow-up for pericardial heart valves?

Question: What is the minimum number of years of follow-up for each author of pericardial heart valves?

Question: How many more than 500 patients looked at pericardial heart valves?