au.\*:("SCHAEFFER JW")
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PSEUDO LEFT AXIS DEVIATION AND THE S1S2S3 SYNDROME IN CHRONIC AIRWAY OBSTRUCTION.SCHAEFFER JW; PRYOR R.1977; CHEST; U.S.A.; DA. 1977; VOL. 71; NO 4; PP. 453-455; BIBL. 12 REF.Article
SYSTEMIC EMBOLIZATION OF THE DISK OCCLUDER OF THE WADA-CUTTER PROSTHETIC VALVE. A LATE COMPLICATION.SCHAEFFER JW; MARKS SD; WOLF PS et al.1977; CHEST; U.S.A.; DA. 1977; VOL. 71; NO 1; PP. 44-46; BIBL. 11 REF.Article