What do A pos and C pos mean?
The # column is the rank of each listed entry for ACS Pharmacology and Translational Science — rank 1 means this entry is where ACS Pharmacology and Translational Science has the most articles or citations. A pos and C pos show the reciprocal: the position of ACS Pharmacology and Translational Science within that entry's own ranked list, by articles and citations respectively. A low value means ACS Pharmacology and Translational Science is among the most prominent contributors for that entry.