Section 12S. No physician may perform an abortion upon a pregnant woman without first obtaining her written informed consent. The commissioner of public health shall prescribe a form for physicians to use in obtaining such consent. This form shall be written in a manner designed to permit a person unfamiliar with medical terminology to understand its purpose and content, and shall include the following information: a description of the stage of development of the unborn child; the type of procedure which the physician intends to use to perform the abortion; and the possible complications associated with the use of the procedure and with the performance of the abortion itself; the availability of alternatives to abortion; and a statement that, under the law of the commonwealth, a person's refusal to undergo an abortion does not constitute grounds for the denial of public assistance. A pregnant woman seeking an abortion shall sign the consent form described above at least twenty-four hours in advance of the time for which the abortion is scheduled, except in an emergency requiring immediate action. She shall then return it to the physician performing the abortion who shall maintain it in his files and destroy it seven years after the date upon which the abortion is performed.

The said consent form and any other forms, transcript of evidence, or written findings and conclusions of a court, shall be confidential and may not be released to any person except by the pregnant woman's written informed consent or by a proper judicial order, other than to the pregnant woman herself, to whom such documents relate, the operating physician, or any person whose consent is required pursuant to this section, or under the law. If a pregnant woman is less than eighteen years of age and has not married, a physician shall not perform an abortion upon her unless he first obtains both the consent of the pregnant woman and that of her parents, except as hereinafter provided. In deciding whether to grant such consent, a pregnant woman's parents shall consider only their child's best interests. If one of the pregnant woman's parents has died or is unavailable to the physician within a reasonable time and in a reasonable manner, consent of the remaining parent shall be sufficient. If both parents have died or are otherwise unavailable to the physician within a reasonable time and in a reasonable manner, consent of the pregnant woman's guardian or guardians shall be sufficient. If the pregnant woman's parents are divorced, consent of the parent having custody shall be sufficient. If a pregnant woman less than eighteen years of age has not married and if one or both of her parents or guardians refuse to consent to the performance of an abortion, or if she elects not to seek the consent of one or both of her parents or guardians, a judge of the superior court department of the trial court shall, upon petition, or motion, and after an appropriate hearing, authorize a physician to perform the abortion if said judge determines that the pregnant woman is mature and capable of giving informed consent to the proposed abortion or, if said judge determines that she is not mature, that the performance of an abortion upon her would be in her best interests. A pregnant woman less than eighteen years of age may participate in proceedings in the superior court department of the trial court on her own behalf, and the court may appoint a guardian ad litem for her. The court shall, however, advise her that she has a right to court appointed counsel, and shall, upon her request, provide her with such counsel. Proceedings in the superior court department of the trial court under this section shall be confidential and shall be given such precedence over other pending matters that the court may reach a decision promptly and without delay so as to serve the best interests of the pregnant woman. A judge of the superior court department of the trial court who conducts proceedings under this section shall make in writing specific factual findings and legal conclusions supporting his decision and shall order a record of the evidence to be maintained including his own findings and conclusions.

Nothing in this section is intended to abolish or limit any common law rights of persons other than those whose rights it governs for the purpose of any civil action or any action for injunctive relief under section twelve U.