Gupta, D., Malhotra, S., Nautiyal, A., Attre, T., Pandey, A., & Chopra, R. (2026). Effect of choline-stabilized orthosilicic acid versus vitamins C and E on peri-implant procollagen type I N-terminal propeptide levels in smokers receiving dental implants: a randomized clinical study. International Journal of Clinical Trials. https://doi.org/10.18203/2349-3259.ijct20262799