|
|
|||
We based our cohort on a national hospital-discharge register and cancer register, as did Pettersson et al., and we used the same inclusion criteria. We used a similar statistical approach — that is, men in whom cryptorchidism was diagnosed and who
HOME | SUBSCRIBE | SEARCH | CURRENT ISSUE | PAST ISSUES | COLLECTIONS | PRIVACY | HELP | beta.nejm.org Comments and questions? Please contact us. The New England Journal of Medicine is owned, published, and copyrighted © 2008 Massachusetts Medical Society. All rights reserved. |