Antepartum detection of congenital complete fetal heart block: a case report.
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Adult↗
Biomedical subjects
D H Armstrong
Publications and source records attributed to D H Armstrong.
Portable sampler for microorganisms in incinerator stack emissions.
To obtain reliable information on viable microbial cells in incinerator stack emissions, a new sampling device has been developed that will concentrate microorganisms from large quantities of stack emissions into a small quantity of 0.067 m phosphate buffer. The simple, portable sampler provides a method for qualitative, nonisokinetic sampling, adjustable to isokinetic conditions that will yield quantitative results.
Air Microbiology↗