title: A sterile leakproof plastic vial for cell cryopreservation in liquid nitrogen: application to parasitic protozoa.
mesh_terms: D000818:Animals; D056890:Eukaryota; D005615:Freezing; D008297:Male; D051379:Mice; D009584:Nitrogen; D011309:Preservation, Biological / Q000295:instrumentation
chemical_list: D009584:Nitrogen