The collection also includes a first folio edition of William Shakespeare's collected plays, published in 1623, seven years after his death -- the primary source of our knowledge concerning Shakespeare's texts.
There are three main sources of concern.
Deforestation and erosion, aggravated by the use of firewood as the primary source of fuel, are serious concerns.
Despite these concerns, RT-PCR has been used successfully to detect leptomeningeal metastasis from a variety of primary sources of cancer.
Harvest actions were the primary source of the litigations by citizen groups concerned about the adverse effects of harvests on the environment, biodiversity, and other ecosystem services.
Thus, a range of concerns about long-term use of prescribed medication were the primary source of patients' and parents' discontent with conventional NHS care.
Generally, the executives said that accounting concerns were not the primary source of the industry's troubles.
The primary source of data collection was use of detailed questionnaires concerning water demand and conservation as shown in Table 3.
There is also concern about the environment in places where biomass use is the primary source of energy in developing countries (69).
However, the results did not allow for conclusions concerning the distribution of MPO, since the distribution of neutrophils as the primary source of MPO was not studied.
