Referral and Consultation. Consultation and Referral . Health Service Gatekeepers . Hospital Referrals . Referral . Referral, Hospital . Referrals, Hospital . Consultations . Gatekeeper, Health Service . Health Service Gatekeeper . Opinion, Second . Opinions, Second . Referrals . Second Opinions . Consultation . Hospital Referral . Second Opinion . Gatekeepers, Health Service . 1.00