function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bankov, Nikola & Todorov, Milcho & Ganeva, Anna', 64],
    ['Chatterjee, Tapas & Dovgal, Igor', 38],
    ['Chatterjee, Tapas & Dovgal, Igor & Fernandez-Leborans, Gregorio', 79],
    ['Chatterjee, Tapas & Dovgal, Igor & Mayén-Estrada, Rosaura', 37],
    ['Chаtterjee, Tаpаs & Dovgаl, Igor & Pešić, Vlаdimir', 19],
    ['Durán-Ramírez, Carlos Alberto & Dias, Roberto Júnio Pedroso', 163],
    ['Mayén-Estrada, Rosaura & Clamp, John C.', 84],
    ['Mayén-Estrada, Rosaura & Dias, Roberto Junio Pedroso', 85],
    ['Mayén-Estrada, Rosaura & Pinto Utz, Laura R.', 93],
    ['Müller, Otto Friedrich', 101],
    ['Porto, Ana Victoria Dunke & Rigo, Francine Vargas & Warren, Alan', 196],
    ['Souza, Pedro Mendes De & Rossi, Mariana Fonseca', 45],
    ['Vďačný, Peter & Rajter, Ľubomír', 29],
    ['Vďačný, Peter & Tirjaková, Eva', 16],
    ['Wilbert, Norbert & Song, Weibo', 32],
    ['Other (205)', 595]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=1676)',
    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);