RT Journal Article SR Electronic T1 COVID-19 vaccination and immunomodulatory or immunosuppressive drugs: indications and contraindications JF BMJ Supportive & Palliative Care JO BMJ Support Palliat Care FD British Medical Journal Publishing Group SP bmjspcare-2021-003371 DO 10.1136/bmjspcare-2021-003371 A1 Yashdeep Singh Pathania YR 2021 UL http://spcare.bmj.com/content/early/2021/10/10/bmjspcare-2021-003371.abstract AB