A and B group vs A and B groups

Some examples from the web:

• Nucleotide sequences of a limited region of the G gene of A and B group viruses were aligned using Clustal W (version 1.74 for Unix) [31], applying the slow and ...
• of the G gene of A and B group viruses were aligned using Clustal. W (version 1.74 for Unix) [31], applying the slow and accurate multiple alignment option.
• Jul 20, 2012 ... ... while type O is significantly associated with protection against CM, patients with type A and B group had increased risk for developing CM.
• 2016 A AND B GROUP TECH REQUIREMENTS. Driver Requirements. ELIGIBILITY. - Drivers must be of legal driving age, and if under 18 must submit a minor ...

Some examples from the web:

• Mem Inst Oswaldo Cruz. 2008 Aug;103(5):417-22. Prevalence and clinical aspects of respiratory syncytial virus A and B groups in children seen at Hospital de ...
• The present analyses suggest that five of the 17 domains might be especially useful in identifying Type A and B groups. PMID: 7580817; [PubMed - indexed for  ...
• A and B groups. Distribution Requirements. Most of the Computer Science degrees require a distribution and/or depth requirement consisting of some number of ...
• Eighth Grade A and B Groups. Atlanta Neighborhood Charter School site. Main menu. Skip to primary content. Skip to secondary content. Humanities · MST ...