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BMJ.326.7391.692
BMJ.326.7391.692
http://dx.doi.org/10.1136/BMJ.326.7391.692
Primary care in the United States: primary care gatekeeping and referrals: effective filter or failed experiment?
P356
Q34874861-17DCC2A3-D4A4-47C5-AADF-00D3A233A4DE
P356
BMJ.326.7391.692
http://dx.doi.org/10.1136/BMJ.326.7391.692