function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alexander, Charles Paul', 2],
    ['Armitage, Brian J. & Ríos González, Tomás A.', 22],
    ['Driauach, Ouafaa & Belqat, Boutaina', 9],
    ['Ivkovic, Marija & Doric, Valentina & Baranov, Viktor', 4],
    ['Kato, Daichi & Tachi, Takuji & Gelhaus, Jon', 7],
    ['Kim, Jisoo & Bae, Yeon Jae', 3],
    ['Kolcsar, Levente-Peter & Oosterbroek, Pjotr', 42],
    ['Kolcsar, Levente-Peter & d\'Oliveira, Micha Camiel', 10],
    ['Obona, Jozef & Stary, Jaroslav & Manko, Peter & Hrivniak, Ľubos', 8],
    ['Ribeiro, Guilherme C. & Santos, Daubian', 8],
    ['Ribeiro, Guilherme Cunha & Lamas, Carlos José Einicker', 6],
    ['Salmela, Jukka & Kaunisto, Kari M & Vahtera, Varpu', 4],
    ['Starý, Jaroslav', 8],
    ['Starý, Jaroslav & Stubbs, Alan E.', 6],
    ['Ÿ, Jaroslav Star & Oosterbroek, Pjotr', 7],
    ['Other (9)', 10]
  ]);
  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);