function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bakken, Torkild & Oug, Eivind & Kongsrud, Jon Anders', 6],
    ['Blake, James A.', 19],
    ['Faulwetter, Sarah & Simboura, Nomiki & Katsiaras, Nikolaos', 12],
    ['Gunton, Laetitia M. & Kupriyanova, Elena K. & Alvestad, Tom', 6],
    ['McIntosh, William C.', 1],
    ['Mendes, Samuel Lucas Da Silva Delgado & Paiva, Paulo Cesar De', 10],
    ['Mendes, Samuel Lucas Da Silva Delgado & Rizzo, Alexandra E.', 4],
    ['Mikac, Barbara', 5],
    ['Persson, Jenny & Pleijel, Fredrik', 1],
    ['Razmi Shah, Raz Shauqeena Batrisyea & Ibrahim, Yusof Shuaib', 1],
    ['Ribas, Julia & Hutchings, Pat', 1],
    ['Salazar-Vallejo, Sergio I. & Carrera-Parra, Luis F.', 1],
    ['Schüller, Myriam', 1],
    ['Schüller, Myriam & Hilbig, Brigitte', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=71)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);