function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anush Kosakyan & Daniel J. G. Lahr & Matthieu Mulot', 16],
    ['Bankov, Nikola & Todorov, Milcho & Ganeva, Anna', 176],
    ['Bobrov, Anatoly & Mazei, Yuri', 36],
    ['Bobrov, Anatoly & Qin, Yangmin & Payne, Richard J.', 2],
    ['González-Miguéns, Rubén & Soler-Zamora, Carmen', 18],
    ['Kudryavtsev, Alexander & Gladkikh, Anna', 2],
    ['Kudryavtsev, Alexander & Pawlowski, Jan & Hausmann, Klaus', 2],
    ['Minor, Pablo', 2],
    ['Patsyuk, M. K.', 12],
    ['Sharma, B. K. & Sharma, Sumita', 13],
    ['Shɨshkin, Yegor', 2],
    ['Snegovaya, N. Yu. & Tahirova, E. N.', 2],
    ['Tice, Alexander K. & L., Shadwick Lora & Fiore-Donno, Anna Maria', 2],
    ['Todorov, Milcho', 2],
    ['Van Wichelen, Jeroen & D’Hondt, Sofie & Claeys, Myriam', 12],
    ['Other (13)', 13]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=312)',
    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);