A Lab with measurements will only show measurements from the same Lab Provider in the Lab Viewer.
Two different Lab Providers, Lab A and Lab B, both measure Creatinine and send two different lab results: Lab A sends Result I and Result J, Lab B sends Result X and Result Y.
When viewing Result Y, you will see measurements from Result I, Result X, and Result J.
When viewing Result Y, you will only see measurements from Result X. Result I and Result J are ignored as they are provided from Lab A, and not Lab B.
Steps to Reproduce:
1. Create a sample patient named Jane Doe
2. Upload the provided labs (one CML, one LifeLabs, anonymized)
3. View the White Blood Cell count from one lab, and see that you can't see results from another.
This is a serious issue for patient safety. Doctors are not concerned about who provided the result for a given measurement. The patients or clinics selection of lab providers should not be relevant. A doctor is only concerned with seeing previous history for a given measurement.
This is likely related to [#3525](https://sourceforge.net/p/oscarmcmaster/bugs/3525/) as the handling of manual measurements is similar to handling measurements from different lab types.