function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Fet, Victor & Kovařík, František & Gantenbein, Benjamin', 15],
    ['Kovařík, Baloorthochirus becvari & 1996', 34],
    ['Kovařík, František', 85],
    ['Kovařík, František & Fet, Victor & Gantenbein, Benjamin', 29],
    ['Kovařík, František & Lowe, Graeme', 25],
    ['Kovařík, František & Lowe, Graeme & Awale, Ahmed Ibrahim', 16],
    ['Kovařík, František & Lowe, Graeme & Elmi, Hassan Sh Abdirahman', 19],
    ['Kovařík, František & Lowe, Graeme & Plíšková, Jana', 19],
    ['Kovařík, František & Lowe, Graeme & Ranawana, Kithsiri B.', 20],
    ['Kovařík, František & Lowe, Graeme & Šťáhlavský, František', 29],
    ['Lauren A. Esposito & Humberto Y. Yamaguti & Cláudio A. Souza', 24],
    ['Lourenço, Wilson R.', 43],
    ['Lowe, Graeme & Kovařík, František', 30],
    ['Navidpour, Shahrokh & Soleglad, Michael E. & Fet, Victor', 16],
    ['Sousa, Pedro & Arnedo, Miquel A. & Harris, D. James', 55],
    ['Other (139)', 501]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=960)',
    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);