Musfequr Rahman, Mohammed, et al. “Study on Skin to Subarachnoid Space Depth of Pregnant and Nonpregnant Female in Cox’s Bazar”. Chattagram Maa-O-Shishu Hospital Medical College Journal, vol. 23, no. 2, Mar. 2025, pp. 84-87, doi:10.3329/cmoshmcj.v23i2.80125.