function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Fraser, Thomas H.', 2],
    ['Gon, Ofer & Gouws, Gavin & Mwaluma, James & Mwale, Monica', 2],
    ['Gon, Ofer & Randall, John Ernest Dr.', 2],
    ['Ho, Hsuan-Ching & Shao, Kwang-Tsao', 2],
    ['Lachner, Ernest A. & Taylor, W. R.', 1],
    ['Pfeffer, G. J.', 1],
    ['Randall, John Ernest Dr. & Satapoomin, Ukkrit', 1],
    ['Smith, J. L. B.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=12)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);