Resources Project Documentation IMPACC Documentation Immunophenotyping Assessment in a COVID-19 Cohort (IMPACC) This documentation is specific to IMPACC and does not apply to other projects. If you are looking for information about using LDMS, view our documentation Using LDMS LDMS User Guide Sample Tracking and Labeling Guidelines Videos Training Video (login to study portal required) LDMS for IMPACC at BCH