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We would greatly appreciate it if someone can provide us with the
following article

*HUMAN REPRODUCTION (OXFORD) 1988, 3 (5):693-8*
Epidemiological studies of natural family planning.
PMID: 3170708
Gray, R H; Kambic, R T;

Año

Marga Arnaiz
Medical Library
C. Hospitalario Universitario de Ourense
Servicio Galego de Saúde
Ramon Puga 52
32005-Ourense (Spain)
www.bibliosaude.sergas.es
turimam@gmail
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