Could you please explain/paraphrase the mentioned part in the context below?

Gifts create relationships and obligations in the recipient, such as grateful conduct, goodwill, and reciprocation. The problem is not that physicians immediately change prescribing practices after receiving a free lunch. Rather, as one writer has warned, >>>>> “The sell is much more subtle. All... show more Gifts create relationships and obligations in the recipient, such as grateful conduct, goodwill, and reciprocation. The problem is not that physicians immediately change prescribing practices after receiving a free lunch. Rather, as one writer has warned,

>>>>> “The sell is much more subtle. All the advertiser may expect is that, other things being equal, if you subsequently have to make a decision it is more likely to be in the favor of the advertiser”.

Source: Resolving Ethical Dilemmas: A Guide for Clinicians by Bernard Lo
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