Section 4305. Revocation of the gift

1.  If  the will, card, or other
  document or executed copy thereof has  been  delivered  to  a  specified
  donee, the donor may amend or revoke the gift by:
    (a) the execution and delivery to the donee of a signed statement, or
    (b)  an  oral  statement  of  revocation  made  in the presence of two
  persons, communicated to the donee, or
    (c) a statement during a terminal illness or injury  addressed  to  an
  attending physician and communicated to the donee, or
    (d) a signed card or document, found on his person or in his effects.
    2.  Any document of gift which has not been delivered to the donee may
  be revoked in the manner set out in subdivision one of this  section  or
  by  destruction,  cancellation,  or  mutilation  of the document and all
  executed copies thereof.
    3. Any gift made by a will may be revoked or  amended  in  the  manner
  provided  for  revocation  or  amendment  of  wills  or  as  provided in
  subdivision one of this section.