| Co-investigator | ||
| University | ||
| Respondents | ||
| Respondent codes | 4701-4900 | |
| Calibrated items | item code | survey | 
| case 1: O-SLu-g-sq-v-5-c | International MRC Study, early 1990s | |
| Data file | catalan1.sav | |
| Remarks | ||
| Co-investigator | ||
| University | ||
| Respondents | ||
| Respondent codes | 4701-4900 | |
| Calibrated items | item code | survey | 
| case 1: O-SLu-g-sq-v-5-c | International MRC Study, early 1990s | |
| Data file | catalan1.sav | |
| Remarks | ||