function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Carr, Robert K. & Hlavin, William J.', 20],
    ['Daeschler, Edward B. & Frumes, Anna C. & Mullison, C. Frederick', 2],
    ['Dupret, Vincent', 3],
    ['Dupret, Vincent & Goujet, D. & Mark-Kurik, E.', 1],
    ['Dupret, Vincent & Zhu, Min', 1],
    ['Dupret, Vincent & Zhu, Min & Wang, Jun-Qing', 1],
    ['Hanke, Gavin F. & Davis, Samuel P.', 2],
    ['Johanson, Zerina', 1],
    ['Laan, Richard Van Der', 51],
    ['Lukševičs, Erwin', 15],
    ['Olive, Sébastien & Goujet, Daniel & Lelièvre, Hervé', 4],
    ['Racheboeuf, Patrick & Phuong, Ta Hoa & Hung, Nguyen Huu', 4],
    ['Young, Gavin C.', 3],
    ['Zhu, You-An & Zhu, Min', 3],
    ['Zhu, You-An & Zhu, Min & Wang, Jun-Qing', 61],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=175)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);