Extent: | application/pdf |
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Series: | |
Type of publication: | Book / Working Paper |
Notes: | HC PR published as American Economic Review Proceedings, Vol. 89 (May 1999): 333-337. Number 6971 |
Classification: | O39 - Technological Change; Research and Development. Other ; I10 - Health. General |
Source: |
Persistent link: https://ebvufind01.dmz1.zbw.eu/10005829016