Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 11 references without a DOI — listed, not checked
no DOI — not checkedAtta-ur-Rahman (ed.), Studies in Natural Products Chemistry, Elsevier (2008), p. 954.
no DOI — not checkedJ. Loeper and M. Fragny, The Physiological Role of the Silicon and its Antiatheromatous Action, Plenum Press, New York–London (1978), p. 589
no DOI — not checkedX. W. Li, H. Y. Yasuda, and Y. Umakoshi, “Bioactive ceramic composites sintered from hydroxyapatite and silica at 1200°C: preparation, microstructures, and in vitro bone-like layer growth,” J. Mater. Sci.: Mater. Med., 17, 573–581 (2006)
no DOI — not checkedC. Q. Ning, J. Mehta, and A. El-Ghannam, “Effects of silica on the bioactivity of calcium phosphate composites in vitro,” J. Mater. Sci.: Mater. Med., 16, 355–360 (2005)
no DOI — not checkedO. Sych, N. Pinchuk, A. Parkhomey, et al., “Morphology structure and properties of new porous biocomposites based on biogenic hydroxyapatite and synthetic calcium phosphates,” Funct. Mater., 14, No. 4, 430–435 (2007).
no DOI — not checkedE. P. Podrushnyak, L. A. Ivanchenko, T. I. Fal’kovska, et al., “New biocomposites based on bone hydroxyapatite and their potential applications in biology and medicine,” Probl. Osteol., 1, No. 2–3, 98–100 (1998).
no DOI — not checkedV. I. Luzin, S. V. Petrosyants, Yu. S. Plyaskova, et al., “Chemical composition of various sections of long cortical bones after implantation of biogenic hydroxyapatite,” Travma, 10, No. 3, 346–350 (2009)
no DOI — not checkedD. V. Ivchenko, “Tactics of treating pathological fractures of extremities of patients with tumor diseases and benign tumors,” Ortoped., Travmatol., Protezir., No. 4, 12–15 (2006).
no DOI — not checkedV. I. Luzin and A. A. Lubenets, “Growth, structurization, and shaping of skeletal bone in implantation of biogenic hydroxyapatite doped with manganese in different concentrations into the tibia,” Ukrain. Morfol. Al’manakh, 9, No. 3, 116–117 (2011).
no DOI — not checkedE. P. Podrushnyak, L. A. Ivanchenko, V. L. Ivanchenko, and N. D. Pinchuk, Hydroxyapatite and Methods for Its Production (Options) [in Ukrainian], Ukrainian Patent 61938, IPC A61K35/32, A61K33/00, A61K6/02, A61P19/00; E. P. Podrushnyak, L. A. Ivanchenko, V. L. Ivanchenko (applicants and patent holders), No. 99095233; appl. September 21, 1999; publ. December 15 (2003), Bulletin No. 12, p. 7.
no DOI — not checkedhttp://siams.com/products/photolab/siams_photolab.htm .
checked 2026-07-23 — re-checked daily as this page is visited;
titles and statuses come from Crossref and DataCite and are not part of the signed record
Both snippets point at the live badge image and link back to this page. The
badge re-renders from the daily check, so an embed never goes stale by more than a day of visits.