TY - JOUR AN - 15 AU - Kempster,P.A. AU - Lees,A.J. AU - Crichton,P. TI - Off-period belching due to a reversible disturbance of oesophageal motility in Parkinson’s disease and its treatment with apomorphine. JO - Mov Disord PY - 1989 VL - 4 SP - 47-52 M2 - 47 DO - 10.1002/mds.870040108 ER -