I have a classmates who went into the sales of

pharmaceutical companies, and is quite successful with his own company. 
he said nothing would sell if no bribing. So have to think creative ways to bribe the doctors for them to prescribe. 
And he said the wai4 qi3 have been disadvnataged because they cannot bribe directly, against their regul;ation, while chinese companies do this in a blink. Haha, think again.