; and (B) any rule of law prescribed by this subtitle in conflict with a rule of law of such title XXI shall not apply to such action. (2) If there is an aspect of a civil action brought for a vaccine-related injury or death to which a Federal rule of law under title XXI of the Public Health Service Act does not apply, then this subtitle or otherwise applicable law (as determined under this subtitle) will apply to such aspect of such action. (b) Other Federal law Except as provided in this section, nothing in this subtitle shall be deemed to affect any defense available to a defendant in a health care lawsuit or action under any other provision of Federal law. 388. Limitation on expert witness testimony (a) In general No person in a health care profession requiring licensure under the laws of a State shall be competent to testify in any court of law to establish the following facts— (1) the recognized standard of acceptable professional practice and the specialty thereof, if any, that the defendant practices, which shall be the type of acceptable professional practice recognized in the defendant’s community or in a community similar to the defendant’s community that was in place at the time the alleged injury or wrongful action occurred; (2) that the defendant acted with less than or failed to act with ordinary and reasonable care in accordance with the recognized standard