Lifelines spss export

• tried the columns :gewicht, lengthe, race_txt, sbp, map, bmi . NULL pointer exception , added some checkes, in  several places. 
• send to Bas  (Icannot open it till Wednesday )  

BBMRI xls import  * __BBMRI-NLBiobank_v07  imported . (data truncation because of hardcoded values inside the model. the null values are handled with simple nillable =true.