sumproduct - sum the same abbreviated titles of medical journals

Dear excel forum users,

my name is David, a librarian from Institute of Oncology Ljubljana.

Would anybody on forum be so kind and help me to solve my problem with counting (sum) how many times the same journal abbreviated name (abbreviated title) repeats in the column A (in tab journals 2018).

For example:
-Nature 2000; 406: 747-52 - abbreviation for the journal Nature
-Ann Surg Oncol 2015; 22(Suppl 3): S495-S501 - abbreviation for the journal Annals of Surgical Oncology
-J Clin Oncol. 2016 Mar 10;34(8):825-32 - abbreviation for the journal Journal of Clinical Oncology
-etc.

I would like to have the results as an automatically generated list of journal abbreviated names (abbreviated titles) in the column A (in tab sum journal titles) with their sum in column B.

Thank you for your help in advance.

David