Issn Print: 0143-3636 Publication Date: 1987/01/01 Print Facebook Twitter LinkedIn Email Correspondence J. A.J. CAMPS; A. VAN LANGEVELDE; Th. STIJNEN; J. A. OSTERHUIS; E. K.J. PAUWELS + Author Information Author Information: 1 Checking for direct PDF access through Ovid View on Journal Site Excerpt