function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barševskis, Arvīds & Janovska, Marina & Aksjuta, Kristīna', 1],
    ['Bezark, Larry G. & Santos-Silva, Antonio', 1],
    ['Danilevsky, Mikhail L. & Skrylnik, Y. E.', 1],
    ['De Barros, Rafael C. & Da Fonseca, Mailson G.', 1],
    ['Ilić, Nastas & Ćurčić, Srećko', 1],
    ['Mistletoe, Insects Associated With The European & Album, Viscum', 1],
    ['Monné, Miguel A.', 6],
    ['Monné, Miguel A. & Santos-Silva, Antonio & Monné, Marcela L.', 1],
    ['Nascimento, Francisco E. De L. & Botero, Juan Pablo', 1],
    ['Sama, Gianfranco & Rapuzzi, Pierpaolo', 1],
    ['Schedl, W.', 1],
    ['Stefanelli, Silvia & Della Rocca, Francesca & Bogliani, Giuseppe', 2],
    ['Wallin, Henrik & Kvamme, Torstein & Lin, Meiying', 15],
    ['Wallin, Henrik & Nylander, Ulf & Kvamme, Torstein', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=35)',
    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);