function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Boonmachai, Tuangthong & Bergey, Elizabeth A.', 4],
    ['Calzada, Sebastián & Forner, Enric', 1],
    ['Darragh, Thomas A.', 1],
    ['Foon, Junn Kitt & Clements, Gopalasamy Reuben & Liew, Thor-Seng', 30],
    ['Gould, A. A.', 1],
    ['Gurumayum, S. D.', 2],
    ['Hasegawa, Kazunori & Fujiwara, Yoshihiro & Okutani, Takashi', 1],
    ['Kiel, Steffen & Campbell, Kathleen A. & Gaillard, Christian', 2],
    ['Mandic, Oleg & Kurečić, Tomislav & Neubauer, Thomas A.', 1],
    ['Minton, Russell L. & Harris, Phillip M. & North, Ernest', 2],
    ['Neubauer, Thomas A. & Mandic, Oleg & Harzhauser, Mathias', 2],
    ['Phung, Chee-Chean & Yu, Fred Tuh Yit & Liew, Thor-Seng', 5],
    ['Rosenkrantz, Alfred', 1],
    ['Woodring, W. P.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=54)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);