1. A tax on infertility?;Brinsden, P.;BMJ,1991
2. A tax on infertility?;Campbell, C.;BMJ,1991
3. A tax on infertility?;Campbell, C.;BMJ,1991
4. A tax on infertility?;Brinsden, P.B.;BMJ,1991
5. Papaveretum in women of childbearing potential;Allen, S.; Marshall Barr, A.; Bird, J.; Brock, P.J.; Ewart, M.C.; Hall, R.;BMJ,1991