So did a cigarette ad target young girls? The tobacco company says no, but pediatricians say, hold on, not so fast. The numbers show a link between the ad and girls lighting up. Our senior medical correspondent Elizabeth Cohen here with that story. And of course, it has got a lot of parents pretty worried.

ELIZABETH COHEN, CNN SENIOR MEDICAL CORRESPONDENT: Oh, it does. Because you know, cigarette companies were supposed to stop advertising to underage smokers, underage girls and boys, like in 1998 and now there are some concerns that they didn't actually keep that pledge. Take a look at this ad. This ran around 2007 in various women's magazines like "Vogue", "Cosmopolitan" and even though I say women's magazines, certainly teenage girls wear it as well. So you can see Camel number nine cigarettes placed next to that's actually part of the ad there with the dress and the stilettos and it's telling women and girls, if you're a girl reading it, how to dress up.

And so what these researchers did was that they asked girls a very specific question about cigarette ads both before and after this campaign. So take a look at this. The numbers are quite telling. They asked the question, what is the name of the cigarette brand of your favorite cigarette advertisement. That's the question.

In 2004, 10 percent of girls chose Camel. Then, the ad campaign was launched in 2007. In 2008, 22 percent of girls chose Camel. So the researchers came to the conclusion it looks like that ad campaign worked. Now we went to RJ Reynolds for a response. And here's what they had to say, they say - R.J. Reynolds adheres to numerous restrictions on how it markets its tobacco products and does not take any action to target youth. Camel number nine was developed in response to female adult smokers who are asking for a product that better reflected their taste preferences and style."

And Kyra, the reason why doctors care about this is that it's been shown that if a girl can name a brand in their favorite advertisement - if they can say, "oh, yes, my favorite advertisement, it was for Camel." They have a much, much higher chance of starting to smoke in the next couple of years because it’s kind of registered in their head, you know, this is my brand. This is the brand I like.

烟草广告有没有将目标瞄准年轻女孩呢？烟草公司说没有，但是儿科医生却说，等等，别那么快下结论。数字显示，烟草广告和少女吸烟之间存在联系。我们的资深医疗记者Elizabeth Cohen为我们详细讲述。当然，这也使许多父母非常担忧。

ELIZABETH COHEN，CNN资深医疗记者：是的。因为你知道，1998年，曾经禁止烟草公司向未成年吸烟者，未成年的少男少女做广告宣传。但是现在，有人担忧他们没有遵守承诺。看一下这个广告。2007年，这份广告印在许多女性杂志上，例如“Vogue”，“Cosmopolitan”等。既然是女性杂志，许多年轻女孩当然也会看。所以，你可以看骆驼9号香烟和一些服装，高跟鞋等等放在一起，告诉女性和女孩，如果你阅读了这份杂志，应该怎样打扮。

所以，研究人员所做的是问女孩们一个具体的问题，这个问题是关于这场运动前后香烟广告的问题。所以，看一下。数字非常能够说明问题。他们问的问题是，你最喜欢的香烟广告的品牌是什么。就是这个问题。

2004年，10%的女孩选择骆驼牌。2007，该公司进行了广告宣传。2008年，22%的女孩选择骆驼牌。所以，研究人员的出结论，似乎广告宣传起到了作用。现在，我们找RJ Reynolds进行回应。他们肯定会说，R.J. Reynolds遵守所有与烟草产品相关的规定和限制，没有对未成年人采取任何行动。骆驼9号香烟是为了满足能够更好的反应女性的口味和风格而研制出的专门针对成年女性吸烟者的产品。

医生如此关注这一点的原因是，如果一个女孩能够说出最喜欢的香烟品牌的广告——如果他们说：“我最喜欢的广告是骆驼牌香烟。”那么，在未来的几年她开始抽烟的可能性非常高。因为她的脑海中似乎有了这样一种概念，这就是我的品牌。这是我喜欢的品牌。