function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cabezudo, Baltasar & Solanas, Federico Casimiro-Soriguer', 24],
    ['Gutierrez, Jorge & Terrazas, Teresa', 7],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 36],
    ['Info Flora', 39],
    ['Jarvis, Charlie', 94],
    ['Konrad Lauber & Gerhart Wagner & Andreas Gygax', 28],
    ['Lecroy, Mary', 7],
    ['Linnaeus, Carolus', 72],
    ['Manning, John', 13],
    ['Martínez-Azorín, Mario & Crespo, Manuel B.', 32],
    ['Nacoulma, Blandine M. I. & Schmidt, Marco & Hahn, Karen', 16],
    ['Reich, Dieter & Gutermann, Walter & Bardy, Katharina', 16],
    ['Takawira-Nyenya, Ratidzayi & Thiede, Joachim & Mucina, Ladislav', 15],
    ['Yahara, Tetsukazu & Hirota, Shun K. & Fujii, Seiko', 12],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 15],
    ['Other (132)', 239]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=665)',
    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);