Do These Methods Apply to Observational Data?

The methods have been around for quite some time, and i believe their common sense and they apply to safety and beyond. And ar really vexcen trids are just a major common example where were i believe ofour methods could be informative. I think that that's an important point. Very often you see these kind of things being meved in a certain era here on cology. It actually applies to many other er thyrapeutic areas as well because here different follow up times. You can always have for for all kinds of different reasons. Is not just because of, you no treatment pitching here her a very, very good pointthact. Do these methods apply to observational data too