1. The mechanism of initiation of parturition in the ewe;Liggins;Rec. Prog. Horm. Res.,1973
2. Endocrine control of parturition;Thorburn,1977
3. Control of parturition in man;Liggins;Biol. Reprod.,1977
4. Initiation of parturition in the human female;MacDonald;Sem. Perinatol.,1978
5. Prostaglandins during pregnancy and the perinatal period;Mitchell;J. Reprod. Fertil.,1981