periods of transition periods of unemployment periods of work periods only periods presented periods prior periods range periods should periods such periods used periods vary periods when periods where periods will perioperative perioperative period perioral dermatitis periorbital periosteal periosteum periostracum peripatetic peripheral peripheral administration peripheral and central peripheral annular peripheral area peripheral areas peripheral arterial peripheral arterial disease peripheral artery peripheral artery disease peripheral blood peripheral blood cells peripheral blood lymphocytes peripheral blood mononuclear peripheral blood mononuclear cells peripheral circuits peripheral circulation peripheral coldness peripheral component peripheral components peripheral countries peripheral device peripheral devices peripheral edema peripheral edge peripheral edges peripheral equipment peripheral flange peripheral frame peripheral groove peripheral interface peripheral intravenous peripheral layer peripheral lip peripheral maritime peripheral motor peripheral nerve peripheral nerve injury peripheral nerves peripheral nervous peripheral nervous system peripheral neuropathic peripheral neuropathies peripheral neuropathy peripheral oedema peripheral part peripheral portion peripheral portions peripheral pulses peripheral recess peripheral region peripheral regions peripheral resistance peripheral rim peripheral ring peripheral seal peripheral sealing peripheral sensory peripheral side peripheral skirt peripheral speed peripheral surface peripheral tissues peripheral unit peripheral units peripheral vascular peripheral vascular disease peripheral vascular resistance peripheral vein peripheral venous peripheral vision peripheral wall peripheral walls peripheral zone peripherality peripherally acting peripherals