RT Journal Article SR Electronic T1 Novel disinfecting spittoons during COVID-19 JF BMJ Innovations JO BMJ Innov FD All India Institute of Medical Sciences SP 515 OP 517 DO 10.1136/bmjinnov-2020-000513 VO 7 IS 2 A1 Mubarak Muhamed Khan A1 Sapna Ramkrishna Parab YR 2021 UL http://innovations.bmj.com/content/7/2/515.abstract AB