The phrase "across four laboratories" is correct and usable in written English.
It can be used when referring to research, experiments, or studies that involve multiple laboratories or locations.
Example: "The findings were consistent across four laboratories, indicating a robust result."
Alternatives: "in four laboratories" or "through four laboratories".
We review relevant past research and re-analyze seventeen experiments from previous studies across three laboratories.
This week, in the journal Nature, a collaboration of more than a hundred quantum physicists, distributed across twelve laboratories in eleven countries on five continents, turned Freeman's formulation on its head.
Fourteen populations that had not been previously analyzed were genotyped using the custom multiplex and these studies allowed assessment of genotyping performance by comparison of data across five laboratories.
Real-time RT-PCR assays with molecular controls engineered to allow differentiation of products arising from synthetic vs. bone fide MV RNA produced consistent results across three laboratories, with each laboratory site reporting less than 10 cDNA copies of MV F and H gene in ileal biopsies from one child with autism and one child without neurological disorder.
A second study measured gene expression in a set of four knockout human cell lines across ten laboratories using three different microarray platforms [ 18].
The work was replicated across two laboratories to ensure that the assay results and interpretation were reproducible by a second laboratory following the SOP.
For the purpose of results reliability across two laboratories in two different countries (Russia and Poland), different DNA samples (one for each SNP, positive or negative controls) were shipped from Russia to Poland and were genotyped by TaqMan assays.
Genome-wide percentage LOH call agreement showed an average 98% of the length of a genome of a sample run in triplicate across three laboratories will agree in LOH call in all three sample runs.
The individual and combined impact of blatant stereotype activation and solo status or mixed-sex groups on the self-appraisals, performance, and anxiety of female leaders was examined across three laboratory studies.
