I am 56 years old and I recently received negative paternity results from a spanish court appointed lab in Sevilla , Spain regarding half siblings, biological father is deceased. My mother will not accept the results that say I am excluded from being their fathers daughter. 7 markers out of 24 were not a match , all 4 half siblings and their mother were tested. Should my mother and I have our DNA tested here in the United States where we live? I cannot afford exhuming their fathers body. I was told that is the only 100% way of knowing whether this man is my biological father. I'm devastated from believing this for 37 years.