function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anderson, William D. & Greene, Brian D. & Rocha, Luiz A.', 2],
    ['Anderson, William D. & Johnson, G. David', 3],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 1],
    ['Bariche, Michel & Fricke, Ronald', 1],
    ['Bleeker, Pieter', 1],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 1],
    ['De Vis, Charles Walter', 1],
    ['Golani, Daniel', 2],
    ['Griffin, L. T.', 1],
    ['Katayama, M. & Yamakawa, Takeshi & Suzuki, Katsumi', 1],
    ['Katayama, M. & Yamamoto, E. & Yamakawa, Takeshi', 1],
    ['Kotthaus, Adolf', 1],
    ['Laan, Richard Van Der & Eschmeyer, William N. & Fricke, Ronald', 1],
    ['Lisher, Mark W. & Thein, Htun & Psomadakis, Peter N.', 2],
    ['Nurettin Meriç & Lütfiye Eryilmaz & Müfit Özulug', 1],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=22)',
    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);