function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 2],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 1],
    ['Franz, V.', 1],
    ['Golani, Daniel & Bogorodsky, Sergey V.', 1],
    ['Jordan, David Starr & Fowler, Henry Weed', 1],
    ['Klunzinger, C. B.', 1],
    ['Lin, Chien-Hsiang & Nolf, Dirk', 1],
    ['Lowe, R. T.', 1],
    ['McCulloch, Alan Riverstone', 1],
    ['Parin, Nik V. & Borodulina, O. D.', 2],
    ['Prokofiev, Artem M. & Psomadakis, Peter N. & Gon, Ofer', 1],
    ['Van Hinsbergh, Victor W. M. & Helwerda, Renate A.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=14)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);