The law distinguishes between liability flowing from acts and omissions, and liability flowing from misstatements. The "Bolam" principle addresses the first element and may be formulated as a rule that a doctor, nurse or other health professional is not negligent if he or she acts in accordance with a practice accepted at the time as proper by a responsible body of medical opinion, even though some other practitioners adopt a different practice. In addition, "Hedley Byrne & Co. Ltd. v Heller & Partners Ltd." AC 465 created the rule of "reasonable reliance" by the claimant on the professional judgment of the defendant.