function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Fabricii, Ioh. Christ.', 3],
    ['Fabricius, Johann Christian', 4],
    ['Ghahari, Hassan & Moulet, Pierre & Ostovan, Hadi', 2],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 2],
    ['Heiss, Ernst & Eckelt, Andreas & Lederwasch, Manfred', 11],
    ['Iorio, Osvaldo Di', 3],
    ['Iorio, Osvaldo Di & Turienzo, Paola & Masello, Juan', 4],
    ['Linnaeus, Carolus', 101],
    ['Poda, Nicolaus', 4],
    ['Reeves, Will K. & Durden, Lance A. & Wrenn, William J.', 5],
    ['Rodrigues, Juliana Mourão Dos Santos', 3],
    ['Roell, Talita & Lemaître, Valérie A. & Webb, Michael D.', 8],
    ['Roth, Steffen & Hahn, Steffen & Montani, María Eugenia', 4],
    ['Scopoli, G. A.', 4],
    ['Usinger, Robert L.', 3],
    ['Other (19)', 22]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=183)',
    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);