Data sheets were analyzed by computer. Partici¬ pants were kept strictly anonymous. Identification of responses corresponded to 4 items, diagnostic procedures to 51 items, therapeutic modalities to 62 items, and there were 62 items for each of the 8 clinical variations. Computer analysis included a theoretical total of 613 items/chart. All responses were coded, memorized on floppy disks on a Apple II microcomputer, then transferred to the central CDC unit of the Free Universities of Brussels. Subsequent analysis was performed using a specially-designed Fortran IV programme and also the SPSS (Statistical Package for Social Sciences) for statistical evaluation (Nie et al. 1975).

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