function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acevedo-Rodriguez, Pedro', 8],
    ['Buerki, Sven & Munzinger, Jérôme & Lowry Ii, Porter P.', 28],
    ['Clarke, Robin & Zamalloa, Sonia', 8],
    ['George E. Schatz & Roy E. Gereau & Porter P. Lowry Ii', 11],
    ['Info Flora', 11],
    ['Jarvis, Charlie', 34],
    ['Lee, Jong-Won & Yun, Ho-Geun & Hwang, Tae Young & Kim, Kyungmin', 11],
    ['Leenhouts, Pieter Willem', 12],
    ['Linnaeus, Carolus', 14],
    ['Merrill, Elmer Drew & Perry, Lily May', 13],
    ['Molino, Jean-François & Sabatier, Daniel & Grenand, Pierre', 38],
    ['Randlkofer, L.', 11],
    ['Suh, Soo-Jung', 8],
    ['Turner, Hubert', 8],
    ['Welzen, Peter Cornelis van', 12],
    ['Other (69)', 174]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=401)',
    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);