“Stacking” and “picking” inventions: The patenting behavior of European inventors
- 作者Myriam Mariani; Marzia Romanelli
- 卷第36卷
- 期第8期
- 印刷ISSN0048-7333
- 文件大小677.67KB
- 发表时间2007
- DOI10.1016/j.respol.2007.07.009
Epidural anaesthesia and long term backache after childbirth.MacArthur, C; Lewis, M; Knox, E G; Crawford, J S · BMJ · 1990
Long term problems after obstetric epidural anaesthesia: Authors' replyMacArthur, C; Knox, E G; Lewis, M · BMJ · 1992
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Epidural anaesthesia and long term backache after childbirth: Authors' replyMacArthur, C; Knox, E G; Lewis, M · BMJ · 1990
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