I would only say, don't try to 'draw her out' - let her gradually decide to come to you. Make sure she has all she needs in easy reach and then just let her get used to the sound of your voice near her. Speak to her, read aloud but otherwise ignore her till she wants to come out. If she doesn't have a bed under the fridge or wherever then maybe you could try putting a shirt or towel with your scent on it somewhere comfortable, but let her choose it, don't force her. Give her time, she will come round - one week is a very short time, especially for a cat who is already timid. Just read the threads here on Pengy and Adelaide and others, who took literally months of patience to get them to socialise even a bit. Yours has presumably not been abused or have other reason to hate humans, so it is not such an extreme case. Good luck with her!