function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bouchard, Patrice & Bousquet, Yves & Davies, Anthony E.', 1],
    ['Eudes-Deslongchamps, E.', 1],
    ['Hájek, Jiří & Jelínek, Josef', 1],
    ['Krøyer, Henrik N.', 2],
    ['McHugh, Joseph V. & Kiselyova, Tatiana G.', 1],
    ['Robert H. Turnbow, Jr. & Thomas, Michael C.', 1],
    ['Thomas, Michael C. & Robert H. Turnbow, Jr. & Steiner, Warren', 1],
    ['Valenciennes, A.', 1],
    ['Webster, Reginald P. & Sweeney, Jon D. & DeMerchant, Ian', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=12)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);