Prena Moorpani, Fazal Ur Rehman Qazi, Shahbaz Ahmed Jat, Hira Akhtar, Munazza Aziz and Marina Shah 2021. Comparison of gingival biotype in smokeless tobacco users (Gutka and Paan) and non-tobacco users. Journal of the Pakistan Medical Association. 71, 6 (Dec. 2021), 1561–1565. DOI:https://doi.org/10.47391/JPMA.1197.