(Q69248324)
Statements
Effect of a gatekeeper plan on health services use and charges: a randomized trial (English)
D P Martin
P Diehr
K F Price
W C Richardson
1 December 1989
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference