function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Araújo, Maíra Xavier & Bravo, Freddy', 103],
    ['Araújo, Maíra Xavier & Dos Santos, Claudiney Biral', 4],
    ['Bejarano, Eduar Elías & Estrada, Luis Gregorio', 3],
    ['Beran, Bernadett & Doczkal, Dieter & Pfister, Kurt', 1],
    ['Bravo, Freddy & Araújo, Maíra X. & Uefs, Santana -', 9],
    ['Curler, Gregory R. & Moulton, John K.', 1],
    ['Ferreira, André Da Silva & Araújo, Maíra Xavier', 3],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 2],
    ['Ibáñez-Bernal, Sergio', 4],
    ['Ibáñez-Bernal, Sergio & Durán-Luz, Juana', 12],
    ['Jezek, Jan & Manko, Peter & Obona, Jozef', 1],
    ['Ježek, Jan & Manko, Peter & Oboňa, Jozef', 1],
    ['Omelková, Markéta & Ježek, Jan', 4],
    ['Quate, Larry W.', 2],
    ['Tkoč, Michal & Pecharová, Martina & Ježek, Jan', 2],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=156)',
    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);