Wonder what the Society circu 1972 would think of pig's valves being used in heart surgery? Patients that go "oink oink?" My father had this option along with using a steel valve instead. The pig's valve lasts a shorter time but it does not require blood thining medication. My father opted for the more longer lasting steel valve. It was thought that with his age it was better to use steel than to risk surgery latter in his life when a pig's valve would wear out. My father went into elective surgery in 1998 for a pace maker. There was fear he would bleed to death as he was on his thining medication (no blood transfusions allowed) so he was taken off his medication. The operation was preformed sucessfully. And 3 days before he was scheduled to go home a clot formed in his heart and he had a massive heart attack destroying his heart. It took 3 days for him to slowly and painfully die. These WTBTS leaders are criminal murderers and should be tried as such. They have no qualifications in anything medical or anything else for that matter. Dave