The only pre-existing studies on the effect of storage on vermicompost [3, 4], have been based on the use of 2-month-old press-mud as feed for earthworms, and assessment of the changes in major nutrients (N, P and K), microbial activity and enzyme activity of the vermicast that was generated.
Pre-existing studies of egao have been primarily interested in the political implications of egao, viewing it from the perspective of resistance or control (see Li 2011, 71 88; Tang and Bhattacharya 2011, 11).
The coding categories were modified from pre-existing studies about media coverage of health research and biotechnologies [ 28, 29] and adapted to include issues raised in similar studies [ 30- 32].
This article presents secondary post-hoc analyzes of pre-existing studies, from two sources: literature reviews (in English and German) and unpublished research data from the co-authors' organizations.
Overall, our analysis found that age and pre-existing comorbid conditions were two major determinants of fatality, which is consistent with existing studies [ 14, 25- 30].
Secondary analyzes of pre-existing studies were conducted to identify challenges in the care of patients with type 2 diabetes as faced by GPs/FPs.
The main difference of our study population to that of pre-existing studies [ 7- 18, 19] 19] on bronchoscopy under noninvasive ventilatory support is that NIV had already been established in our patients irrespective of a planned bronchoscopy.
Although there were no pre-existing large studies of prolactin-regulated genes in breast cancer cells, we compared our results with other prolactin-related studies.
The questionnaire was modified from a pre-existing questionnaire study of cancer patients and was adapted to be relevant to relatives to ICU patients [ 5].
The dosage of enoxaparin to be used in our trial has been intensively discussed in terms of pre-existing prevention studies in other indications.
There was no pre-existing programme for the study of the kind of things that ordinary people listened to, watched and read in their daily lives.
