Robinson J O, Hibbard B M, Laurence K M
J Psychosom Res. 1984;28(2):163-9. doi: 10.1016/0022-3999(84)90010-2.
Anxiety was assessed in prospective mothers undergoing screening for foetal neural tube defects. Anxiety was found to be extreme and only returned to normal levels when a definitely negative amniocentesis result was communicated to the woman. Anxiety was mitigated by social and family support but other life events had little effect on it.