function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Boulenger, George Albert', 1],
    ['Cavin, Lionel & Suteethorn, Varavudh & Buffetaut, Eric', 2],
    ['Churcher, Charles S. & Iuliis, Gerardo De', 2],
    ['Daeschler, Edward B. & Shubin, Neil H. & Jenkins Jr., Farish A.', 1],
    ['Ehlers, Ernst', 1],
    ['Fitzinger, Leopold Joseph Franz Johann', 1],
    ['Friedman, Matt', 1],
    ['Gardner, James D.', 1],
    ['Gess, Robert W. & Coates, Michael I.', 2],
    ['Gray, John Edward', 1],
    ['Laan, Richard Van Der', 41],
    ['Laan, Richard Van Der & Eschmeyer, William N. & Fricke, Ronald', 4],
    ['Lionel Cavin & Bastien Mennecart & Christian Obrist', 2],
    ['Lionel Cavin & Xavier Valentin & Géraldine Garcia', 2],
    ['de Laporte Castelnau La Ferté-Sénectère, Francis L.', 2],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=70)',
    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);