https://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi?db=pubmed&term=Robert+MacDonald%5Bauthor%5D&datetype=edat&usehistory=y&retmax=1&tool=Litmetric&email=readroberts32@gmail.com&api_key=61f08fa0b96a73de8c900d749fcb997acc09 199101MCID_676f069cb009b3c2230bbc34 39487163 Robert MacDonald[author] Macdonald, Robert[Full Author Name] macdonald, robert[Author]