TY - RPRT TI - Restrictive versus obstructive ventilatory impairment. AU - A Bouhuys AU - K P Van de Woestijne PY - 1968 DO - 10.1016/s0140-6736(68)90561-8 UR - https://pubmed.ncbi.nlm.nih.gov/4173763/ ID - 4173763 ER -