Without access to the full paper, it's hard to say. The abstract only mentions how many products they tested, but not what those products were. There's no way of knowing if those products came from reputable manufacturers or if they were shady knock-off or low-quality products.
Without access to the full paper, it's hard to say. The abstract only mentions how many products they tested, but not what those products were. There's no way of knowing if those products came from reputable manufacturers or if they were shady knock-off or low-quality products.