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secondary analysis stresses
gen.	вторичный анализ (Mag A)
med.	дополнительный анализ (There are two types of data analyses of randomized clinical trials (RCTs). The primary analyses are pre-specified in the protocol and the findings form the basis for recommendations and clinical decisions. They typically adhere to the intention-to-treat principle. Secondary analyses are supplemental and of various sorts. Although some may be pre-specified, many are not. nih.gov amatsyuk)
nucl.pow.	дополнительное исследование (Iryna_mudra)

secondary analysis: 2 phrases in 2 subjects

Clinical trial	1
Welding	1