function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Byun, Bong-Kyu', 2],
    ['Byun, Bong-Kyu & Park, Kyu-Tek', 3],
    ['Latreille, Pierre André', 1],
    ['Leach, William Elford', 1],
    ['Pohl, Greg & Anweiler, Gary & Schmidt, Christian', 1],
    ['Rebel, H.', 1],
    ['Richert, Arnold & Busse, Rainer & Theimer, Franz', 1],
    ['Ustjuzhanin, P. & Kovtunovich, V.', 10],
    ['Ustjuzhanin, Peter & Kovtunovich, Vasily', 4],
    ['Ustjuzhanin, Peter & Kovtunovich, Vasily & Delabye, Sylvain', 13],
    ['Ustjuzhanin, Peter & Kovtunovich, Vasily & Maicher, Vincent', 7],
    ['Ustjuzhanin, Peter & Kovtunovich, Vasily & Safian, Szabolcs', 30],
    ['Ustjuzhanin, Petr & Kovtunovich, Vasiliy & Hobern, Donald', 7],
    ['Ustjuzhanin, Petr & Kovtunovich, Vasily', 20],
    ['Ustjuzhanin, Pеtеr & Kovtunovich, Vasiliy & Ustjuzhanina, Anna', 15],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=118)',
    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);