Helena Jenzer is a specialist in hospital pharmacy. She had leading positions as head of a hospital pharmacy for 30 years, as well as positions as qualified person in producing hospital pharmacies and in a blood product manufacturing industry. She is specialised in all questions of quality assurance, manufacturing and quality control in a frame of cGMP and PIC/s guidelines. She has a CAS in Public Health Collaboration. She was a member of the board of the GSASA and is currently member of the Scientific Committee of the EAHP (European Association of Hospital Pharmacist). Her further activities were leading full-time a nutritional medicines research division at a University of Applied Sciences (until December 2016), which lead to a series of publications including supply chain related articles about the availability of medicines. In 2014 and 2015 she was main proposer and became chair of COST Action Ca15105 (European Medicines Shortages Research Network - addressing supply problems to patients). Actually, she has two half time equivalents as senior researcher and as chief hospital pharmacist.