function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Blanco, Francisco Manuel', 1],
    ['Blume, Carl Ludwig von', 1],
    ['DeFilipps, Robert A. & Krupnick, Gary A.', 1],
    ['Fitmawati, Fitmawati & Juliantari, Erwina & Silvia, Mega', 1],
    ['Jarvis, Charlie', 1],
    ['Linnaeus, Carolus', 1],
    ['McQuate, Grant T. & Liquido, Nicanor J.', 2],
    ['Merrill, Elmer Drew & Perry, Lily May', 1],
    ['Micucci, M. & Bolchi, C. & Budriesi, R. & Cevenini, M.', 1],
    ['Mille, Christian & Henderson, Rosa C. & Cazères, Sylvie', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=11)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);