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voucher

Known as: vouchers 
A document that can be exchanged for particular goods or services or one serving as a record of money paid.
National Institutes of Health

Papers overview

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2011
2011
In Senegal mutual health organizations (MHOs) have been present in the greater region of Thies for years. Despite their benefits… 
Highly Cited
2008
Highly Cited
2008
Loyalty and discount schemes in which customers are invited to sign up for a card and become a member of a scheme, sometimes in… 
2008
2008
The leaves of Piper sarmentosum were hydrodistilled using the modified Clevenger-type apparatus, and an average yield of… 
Highly Cited
1998
Highly Cited
1998
This study examined whether voucher delivery arrangements affect treatment outcome. First, 90 cocaine-dependent adults were… 
1988
1988
The steam volatile oil from the aerial parts of Hyptis suaveolens has been examined by combined GC-MS. Of the 70 components…