I am not proposing anything rather as you correctly said there are laws/regulations in each country which are different and even quite stringent. The example given by you are quite simple and easy laws.
The data protection laws in some countries are quite tough and difficult to follow even for general data storage that i am not sure how the companies are dealing with those while keeping data on block-chain and this is what i am trying to understand/learn.
Thanks for sharing the concern which is pretty valid. my concern is rather 1 step before we even reach this point. My doubt is that can this data even be shared and/or put on the Block-chain? If yes, it will be regulated under which laws? Regulations of the country of origin of data or regulations of the company registration, etc.?
Uhmm, that is what you are proposing in the OP right ("Patient Data Storage and Sharing")? To my knowledge some countries already have some kind of laws protecting some patient information and identity, for example patient confidentiality on people who are being admitted to rehab must remain anonymous even if the rehab is done, as making their identity hidden will not let people judge his/her current or past situation. Also some countries have laws preventing the faces of mental institute patients to be shown in televisions whether it is news or documentary, as they still have the right of their privacy.
Having this kind o blockchain technology available will simple void this pre-existing laws which can deeply harm the human rights of these patients. I really don't think that we are on that part of development that we need to push through on this kind of technology as it is still not necessary, at least the way I see it.