function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 1],
    ['Franz, V.', 1],
    ['Fricke, Ronald & Allen, Gerald R. & Andréfouët, Serge', 1],
    ['Golani, Daniel & Fricke, Ronald', 1],
    ['Gray, John Edward', 1],
    ['Günther, Albert Charles Lewis Gotthilf', 1],
    ['Ho, Hsuan-Ching & Shao, Kwang-Tsao', 1],
    ['Kawai, Toshio & Amaoka, Kunio & Séret, Bernard', 1],
    ['LARSON, HELEN K. & WILLIAMS, REX S. & HAMMER, MICHAEL P.', 1],
    ['Laan, Richard Van Der & Eschmeyer, William N. & Fricke, Ronald', 1],
    ['Matsubara, K. & Takamuki, H.', 1],
    ['Mihara, E. & Amaoka, Kunio', 4],
    ['Quéro, J. - C. & Hensley, Dannie A. & Maugé, A. L.', 3],
    ['Voronina, Elena P. & Volkova, Galina A.', 3],
    ['von Bonde, C.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=23)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);