Argentina's public prosecutor's office will convene a medical board on March 8 to decide whether or not late football legend Diego Maradona was given proper treatment before his death, legal sources said on Tuesday. Reports AFP. Maradona died of a heart attack on November 25, weeks after undergoing brain surgery on a blood clot. Investigators are trying to determine whether or not there was negligence in Maradona's health care before he died. Nine experts will be called on March 8 including the medical examiners that took part in Maradona's autopsy. Five people, including neurosurgeon Leopoldo Luque and psychiatrist Agustina Cosachov, are already under investigation in the involuntary manslaughter probe.