Double blind, cluster randomised trial of low dose supplementation with vitamin A or beta-carotene on mortality related to pregnancy in Nepal: The nnips-2 study group. BMJ 1999, 318, 570–575. [CrossRef] [PubMed] 112. Sahu, M.; Das, V.; Aggarwal, A.; Rawat, V.; Saxena, P.; ...
Cells were irradiated at room temperature with 200 kV and 15 mA at a dose rate of ~1 Gy/min. To eliminate soft X-rays, a copper filter (thickness 0.5 mm) was used. Cells were irradiated in petri dishes (Ø 3 or 6 cm). Doses up to 16 Gy were used, with an LET of 0.3–3...