Data Fix -- Wrong Dates (AMA 1964)

[grishagin]

UPDATE: same table on google drive
https://docs.google.com/spreadsheets/d/1zK1w_TM3BzqTnDBOVY97RLBNUwVG801HWIaeWKDdekk/edit#gid=0

Description:

2018-02-12 drugs with wrong dates.xlsx:
First 90 lines - marketed drugs that we have no approval date, and likely the wrong marketed status for
Second 90 lines - approved drugs where we clearly have wrong approval date (we can get from the book, by hand)
Line 646-715 - Marketed products where we have no UNII match, probably deserves some TLC / Rancho curation
line 716-976 - Probably a few real marketed products that should be fished out and curated by hand

Note these are mostly pre-1962 DESI products, so unless we already have them as approved from another source, we should just mark them as unapproved, previously marketed?

ToDo:

1) add the first 90 into stitcher, create corresponding events (should be marketed)