function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abato, Jamael & Yoshida, Ryuta & Kajihara, Hiroshi', 2],
    ['Bürger, O.', 2],
    ['Cherneva, Irina & Ellison, Christina I. & Zattara, Eduardo E.', 12],
    ['Gibson, Ray', 5],
    ['Gibson, Ray & Strand, Malin', 3],
    ['Gonzalez-Cueto, Jaime & Quiroga, Sigmer & Norenburg, Jon', 8],
    ['Hookabe, Natsumi & Moritaki, Takeya & Jimi, Naoto & Ueshima, Rei', 4],
    ['Iwata, Fumio', 5],
    ['Kajihara, Hiroshi', 15],
    ['Kajihara, Hiroshi & Olympia, Minerva & Kobayashi, Norio', 3],
    ['Kajihara, Hiroshi & Tamura, Kotaro & Tomioka, Shinri', 13],
    ['Maslakova, Svetlana A. & Norenburg, Jon L.', 13],
    ['Sadeghian, Patricia S. & Santos, Cynthia', 4],
    ['Sagorny, Christina & Döhren, Jörn von & Rouse, Greg W.', 4],
    ['Santos, Cynthia & Norenburg, Jon L. & Bueno, Sérgio L. S.', 5],
    ['Other (22)', 25]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=123)',
    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);