function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 1],
    ['Bariche, Michel & Fricke, Ronald', 1],
    ['Bañon, Rafael & Arronte, Juan Carlos', 1],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 2],
    ['Edwards, A. J. & Gill, A. C. & Abohweyere, P. O.', 2],
    ['Fricke, Ronald & Allen, Gerald R. & Andréfouët, Serge', 1],
    ['Golani, Daniel', 2],
    ['Golani, Daniel & Fricke, Ronald', 1],
    ['Houttuyn, M.', 1],
    ['Jordan, David Starr & Thompson, W. F.', 1],
    ['LARSON, HELEN K. & WILLIAMS, REX S. & HAMMER, MICHAEL P.', 1],
    ['Laan, Richard Van Der & Eschmeyer, William N. & Fricke, Ronald', 1],
    ['Linnaeus, Carolus', 6],
    ['Lipej, Lovrenc & Dulčić, Jakov', 1],
    ['Love, Milton S. & Bizzarro, Joseph J. & Cornthwaite, Maria', 2],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=29)',
    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);