its employees, members, and/or agents (Defendants Gunn and Jacobs) under the doctrine of respondeat supenor and under the statutory vicarious liability requirements provided in the Texas Professional Association Act.” It is evident that this claim is directed to OGA’s liability based solely on the conduct of Drs. Gunn and Jacobs; no direct-negligence theories distinct from the doctors’ actions are alleged. When liability is alleged against a professional association based solely on the actions of its principals, the question of the professional association’s liability is based on a legal principle, not a medical standard of care, and so no expert report is required. See Hiner v. Gaspard, No. 09-07-240-CV, 2007 WL 2493471, at *5 (Tex.App.-Beaumont Sept. 6, 2007, pet. denied) (mem.op.) (<HOLDING>); In re CHCA Conroe, L.P., 09-04-453-CV, 2004
holding that expert report that sufficiently addressed certain claims against doctor employed by professional association was sufficient as to claims against professional association based on doctors negligence because the doctors negligence is imputed to the association under the professional association act holding that no expert reports specifically addressing conduct of professional corporation and professional association were required when plaintiffs alleged only vicarious liability based on medical negligence of entities physicians explaining that the entities conduct is not measured by a medical standard of care but rather their liability was solely vicarious holding that vicarious liability claim against union based on medical malpractice of treating physician is not preempted by erisa holding that a supervisor cannot be held personally liable for the unconstitutional conduct of a subordinate based on vicarious liability holding that expert report addressing hospitals conduct was not required when plaintiffs sole theory against hospital was vicarious liability based on ostensible agency and explaining that the conduct by the hospital on which the agency relationship depends is not measured by a medical standard of care these are principles of agency law on which no expert report is required