Out of curiosity, what are the impact factors of the journals in which the work that you cited has been published? The impact factor of a journal is the average annual number of times a paper published in it has been cited in other papers.

There are thousands of scientific and medical journals, many of which have quite low impact factors.

Journals like Nature (impact factor 43), Science (impact factor 41) and the NEJM (impact factor 70) have high impact factors.

Personally, I give more credibility to work which been published in a journal with a high impact factor than I do to work which has been published in a journal with a low one.