India is comprising of twenty-eight states and eight union territories (UTs). Data on the prevalence of different blood groups in various states and UTs were screened through PubMed, Google Scholar. A recent report highlighted the enrolment of appropriate controls for the association study between the ABO blood group system and the COVID-19 infection or mortality [13]. The present study included publications on the frequency of ABO blood group system in healthy controls. Various data such as names of the states or UTs, the total number of healthy controls, and the frequency of different blood groups were extracted.
Do you have any questions about this protocol?
Post your question to gather feedback from the community. We will also invite the authors of this article to respond.
Tips for asking effective questions
+ Description
Write a detailed description. Include all information that will help others answer your question including experimental processes, conditions, and relevant images.