Merchant, Anwar; Husain, Syed S. M.; Hosain, Mervyn; Fikree, Fariyal F.; Pitiphat, Waranuch; Siddiqui, Amna Rehana; Hayder, Syed J.; Haider, Syed M.; Ikram, Mubashir (2000). Paan without tobacco: An independent risk factor for oral cancer. International Journal of Cancer. 86 (1): 128—31. doi:10.1002/(SICI)1097-0215(20000401)86:1<128::AID-IJC20>3.0.CO;2-M. PMID10728606.
Wen, Chi Pang; Tsai, Min Kuang; Chung, Wen Shen Isabella; Hsu, Hui Ling; Chang, Yen Chen; Chan, Hui Ting; Chiang, Po Huang; Cheng, Ting-Yuan David; Tsai, Shan Pou (2010). Cancer risks from betel quid chewing beyond oral cancer: A multiple-site carcinogen when acting with smoking. Cancer Causes & Control. 21 (9): 1427—35. doi:10.1007/s10552-010-9570-1. PMID20458529.
Sharma, Dinesh C (2001). Indian betel quid more carcinogenic than anticipated. The Lancet Oncology. 2 (8): 464. doi:10.1016/S1470-2045(01)00444-2.
Amarasinghe, Hemantha K.; Usgodaarachchi, Udaya S.; Johnson, Newell W.; Lalloo, Ratilal; Warnakulasuriya, Saman (2010). Betel-quid chewing with or without tobacco is a major risk factor for oral potentially malignant disorders in Sri Lanka: A case-control study. Oral Oncology. 46 (4): 297—301. doi:10.1016/j.oraloncology.2010.01.017. PMID20189448.
Senn, M.; Baiwog, F.; Winmai, J.; Mueller, I.; Rogerson, S.; Senn, N. (2009). Betel nut chewing during pregnancy, Madang province, Papua New Guinea. Drug and Alcohol Dependence. 105 (1–2): 126—31. doi:10.1016/j.drugalcdep.2009.06.021. PMID19665325.
Yang, Mei-Sang; Lee, Chien-Hung; Chang, Shun-Jen; Chung, Tieh-Chi; Tsai, Eing-Mei; Ko, Allen Min-Jen; Ko, Ying-Chin (2008). The effect of maternal betel quid exposure during pregnancy on adverse birth outcomes among aborigines in Taiwan. Drug and Alcohol Dependence. 95 (1–2): 134—9. doi:10.1016/j.drugalcdep.2008.01.003. PMID18282667.
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Mahapatra (21 березня 2011). Paan loses flavour. Архів оригіналу за 19 березня 2011. Процитовано 19 жовтня 2020.
Merchant, Anwar; Husain, Syed S. M.; Hosain, Mervyn; Fikree, Fariyal F.; Pitiphat, Waranuch; Siddiqui, Amna Rehana; Hayder, Syed J.; Haider, Syed M.; Ikram, Mubashir (2000). Paan without tobacco: An independent risk factor for oral cancer. International Journal of Cancer. 86 (1): 128—31. doi:10.1002/(SICI)1097-0215(20000401)86:1<128::AID-IJC20>3.0.CO;2-M. PMID10728606.
Wen, Chi Pang; Tsai, Min Kuang; Chung, Wen Shen Isabella; Hsu, Hui Ling; Chang, Yen Chen; Chan, Hui Ting; Chiang, Po Huang; Cheng, Ting-Yuan David; Tsai, Shan Pou (2010). Cancer risks from betel quid chewing beyond oral cancer: A multiple-site carcinogen when acting with smoking. Cancer Causes & Control. 21 (9): 1427—35. doi:10.1007/s10552-010-9570-1. PMID20458529.
Amarasinghe, Hemantha K.; Usgodaarachchi, Udaya S.; Johnson, Newell W.; Lalloo, Ratilal; Warnakulasuriya, Saman (2010). Betel-quid chewing with or without tobacco is a major risk factor for oral potentially malignant disorders in Sri Lanka: A case-control study. Oral Oncology. 46 (4): 297—301. doi:10.1016/j.oraloncology.2010.01.017. PMID20189448.
Senn, M.; Baiwog, F.; Winmai, J.; Mueller, I.; Rogerson, S.; Senn, N. (2009). Betel nut chewing during pregnancy, Madang province, Papua New Guinea. Drug and Alcohol Dependence. 105 (1–2): 126—31. doi:10.1016/j.drugalcdep.2009.06.021. PMID19665325.
Yang, Mei-Sang; Lee, Chien-Hung; Chang, Shun-Jen; Chung, Tieh-Chi; Tsai, Eing-Mei; Ko, Allen Min-Jen; Ko, Ying-Chin (2008). The effect of maternal betel quid exposure during pregnancy on adverse birth outcomes among aborigines in Taiwan. Drug and Alcohol Dependence. 95 (1–2): 134—9. doi:10.1016/j.drugalcdep.2008.01.003. PMID18282667.